Nonduality and its central role to understanding meditation

The problem in talking about the concept of nonduality is that it is everywhere, all the time, but it is rarely recognised or understood.

Nondual understanding, the key to understanding meditation
Non-duality, the foundational principle of Buddhist meditation methods

Where to begin? Where to begin when there is no beginning? To merely approach the concept of nonduality, several volumes of definitions, meanings and precedents could be used to establish the common ground required for a meaningful introduction. Consider that in traditional training systems, an ‘introduction’ to nonduality can comprise a decade or more of study and meditation. Even then an intellectual understanding might not be achieved, and a genuine experiential appreciation is even less likely. But despite the challenges,  I’m going to attempt to outline a basic framework illustrating the inseparability of nonduality and Buddhist meditation.

library high angle photro

From the Western academic standpoint, there are several ways of approaching nonduality, including the use of art, contemplative science, neuroscience, philosophy, psychology, semiotics and more.1 However, as this is a discussion of duality and nonduality in contemplative science, I can try a short-cut and align these thoughts to theoretical frameworks from traditional meditation systems. Crucially these established understandings have stable ontologies with reliable supporting and supportive epistemologies. Such theoretical frameworks can be found throughout traditional meditation schools, but are explicitly taught in nondual approaches such as Dzogchen and Mahamudra.2 I disagree with Capra’s generalisations about the shared world view of Eastern mystical traditions.3 But I take his point that there are fundamental conflicts between positivist and mystical understandings of mind and matter. This is not to give the first or last word on nonduality to any tradition, school or sect. Put simply, the tension between duality and nonduality is just an elegant way of describing the conscious experience of humans. However, some mystical traditions have established literary and oral traditions explaining the nature of explicit nonduality and the methods that may be used to establish nondual awareness (NDA).

As most forms of meditation shape the cognitive processes underpinning conscious experience, they can be considered as tools able to influence our concepts of duality-nonduality. However, a point of clarification is required, everything we think, say or do also exerts a force upon our lived experience. The difference between meditation and everyday experience is that meditation can be designed to systematically augment our access to NDA. So when we talk about meditation in a traditional context, nonduality is generally (intrinsically and extrinsically) part of the process and method being used. It is also important to stress that Buddhist meditation is a broad church (several different churches), some meditation approaches may not articulate any position about dualistic concepts. For example, Bhikkhu Bodhi has stated that the Buddhist scriptures reject the pursuit of dual or nondual states.2 The motivation of practitioners is also a critical factor in this discussion, people may meditate for many years without ever encountering the path to NDA. Conversely, several people have reported ‘accidental’ insight into nonduality without the use of any of the methods known to mediate conscious experience. Reassuringly, traditional texts from established meditation schools set out the foundational processes leading to NDA, which are congruent with (some) scientific understandings of cognitive training.

Contemplative science (the scientific study of meditation and mindfulness built up over the last half-century) is yet to create authoritative understanman standing on rooftop facing brown highrise buildingdings of the relationship between dual-nondual consciousness and meditation. One of the limiting factors in the scientific study of traditional forms of meditation is the very existence of dual and nondual awareness. The assumptions of positivism are that both the scientist and the scientific method are objective, assertions that have been demonstrated to be dualistic and sometimes unreliable. Therefore, NDA challenges the ontologies of many approaches trying to understand how traditional mediation mediates consciousness.

So given the preamble, how to explain dualism to a person neurologically committed to a dualistic view of the world? For this, we can return to preliminary discourses of how does the mind watch itself? The typical cognitive response to this question is that the executive function (EF) holds this task (of self-monitoring). But in reality, we know (at the level of psychology and personal experience), the EF is both participant and observer of the drama of our lives. This supports the view that humans flit between the dual and nondual states without necessarily being aware or having any choice in the matter. This takes us back to the drawing board because it is clear we often see the world in both dual and nondual frames according to a range of causes and conditions. NDA isn’t an abandonment of duality. Instead, it offers an experience-based understanding of the full scope of our conscious engagement with the world.

silhouette of person holding glass mason jar

Preliminary work by scientists like Josipovic and scholars such as Dunne has indicated that nondual meditation methods possess a qualitatively different nature when compared to other practices. But NDA is not restricted to nondual practices, it is relevant to all forms of Buddhist meditation (to a greater or lesser extent). This is the main point, we have a number of neural networks that drive our experience of life. Humans privilege parts of these networks over others, leading to a false certainty or reliance on those privileged domains. Over time these positions become dominant in terms of brain functions and structures. This is why so many of us are oblivious to the limitations of duality, we lack the cognitive software or neurological hardware to access it.

I have yet to see evidence that the timeless negotiation between dual and nondual consciousness has been recorded scientifically, let alone understood. This shouldn’t be seen as a criticism of contemplative science or cognitive psychology. A training in NDA is typically a work of years, and few people ever fully complete this journey. The full potential offered to humanity by nondual forms of meditation is dependent on grasping the nature of highly elusive mental states, considered to be the ‘result’ of meditation practices. The notion that the benefits of meditation can be found in the method alone reflects a dualistic understanding of mystical approaches.

The good news for both meditation scientists and secular practitioners is that a meaningful understanding of experience-based NDA is not essential for the research and practice of meditation methods. That regular meditation can alter brain function and structure is now widely accepted. In some cases, a pressing clinical need may lead to the practice of meditation as symptom focussed brain training, in the way that we could use Cognitive Behavioural Therapy (CBT). But this has little relationship with traditional and transcendent forms of meditation. A foundational limitation in the scientific study of meditation is also the absence of an appreciation of explicit and implicit nondual mental processes.

If you’re still wondering what duality and nonduality are, you’re not alone. It’s a tricky subject to work with, many experienced meditators are aware of the concepts but still fail to engage consciously with them. For a basic introduction into nondual concepts, you might find the NDA podcast helpful, download it here.


1. Loy, David. Nonduality: A study in comparative philosophy. Prometheus Books, 2012.

2. Josipovic, Zoran. “Neural correlates of nondual awareness in meditation.” Annals of the New York Academy of Sciences 1307, no. 1 (2014): 9-18.

3. It is a complex task to define precisely which Eastern mystical traditions are nondual and which are not. The very proposition is a binary concept that makes no real sense from the nondual perspective. Perhaps at a later point I will attempt to set out distinctions between relative and absolute nonduality and how these can be further divided into explicit and implicit forms (realistically this is a book project rather than a blog post). Capra, Fritjof. “Modern physics and eastern mysticism.” Journal of Transpersonal Psychology 8, no. 1 (1976).

4. With all respect to the Bhikkhu, the abandonment of the pursuit of relative conscious states such as dual or nondual appears close to the integration which is one goal of the explicitly nondual traditions. Bodhi, Bhikkhu. “Dhamma and non-duality.” Access to Insight (2011).


Essay edited on 14th May 2020.

Choose happiness! Is mind wandering unwelcome?

Choose happiness!
Does mind wandering inevitably lead to unhappiness?


Is mind wandering unwelcome?
Is mind wandering unwelcome?

Authors: Killingsworth, M. A., & Gilbert, D. T.

Year: 2010

Title: A wandering mind is an unhappy mind.

Summary: I’ve taken a step back with this study (chronologically speaking) because it predates the Jazaieri et al. paper that I recently reviewed. According to Google Scholar, this investigation has been cited by other researchers over 1500 times. If you read any scientific study linked to mind wandering since 2010 you can expect to find Killingsworth & Gilbert referenced. Three reasons why this work is so popular, firstly it was a big study, recruiting 2250 participants. Secondly, it took an innovative approach to the use of technology, using an iPhone app to track and record mind wandering in ‘real world’ scenarios. Finally, the study made some very strong statements which with hindsight, have perhaps oversimplified mind wandering. In particular, the idea that “a human mind is a wandering mind, and a wandering mind is an unhappy mind”.

The full purpose of mind wandering is not yet understood, its activity is largely observed in the Default Mode Network (DMN). The DMN is a collection of anatomically separate regions that are most active when we are not engaged in a specific externally focussed task, hence our ‘default state’. The research concludes that mind wandering is a cause of unhappiness and (staggeringly) even mind wandering to positive subjects doesn’t appear to improve self-reported happiness. Provided with this kind of context it’s no wonder that the idea of suppressive mind wandering approaches maintained popularity across experimental and clinical psychology. Killingsworth & Gilbert even supported their case by claiming that many religious and philosophical traditions link happiness to living in the here and now.

Buddhism and mind wandering

Many forms of meditation and mindfulness do work on training consciousness to rest in the present moment. But from the Tibetan Buddhist perspective to equate this with a conclusion that mind wandering is a cause of unhappiness is somewhat misleading. Traditional meditation is often set in a wider context, undertaken for the benefit of all beings (self and other). Any merit that is accumulated from resting in the present moment is typically dedicated to others, rooting the practice in the past present and future. The idea that a thought, rather than the reaction (attachment or aversion) to the thought is the cause of unhappiness isn’t supported by the theoretical frameworks of traditional meditation systems.

Abnormally high levels of mind wandering are likely to be clinically problematic, but even today we don’t know all the functions mind wandering might have. It’s considered to be linked to the narrative we make to understand ourselves in the wider world. There isn’t evidence that the process itself brings unhappiness, it may be that the quality of our self-generated narrative rather than mind-wandering per se might be the problem. For example, 1 in 4, 14-year-old girls in the UK demonstrate symptoms of depression, and that teenage depression is correlated with social media use. Can we say that mind wandering to social media content, rather than emotions linked to social media content is the root cause of any reported unhappiness?


Meditation can change the size of your brain

The brain is plastic, to what extend does it undergo structural changes during meditation?


Authors: Kieran C.R. Fox, Savannah Nijeboer, Matthew L. Dixon, James L. Floman,
Melissa Ellamil, Samuel P. Rumak, Peter Sedlmeier, Kalina Christoff

Year: 2014

Title: Is meditation associated with altered brain structure? A systematic review and meta-analysis of morphometric neuroimaging in meditation practitioners

Summary: Like almost every contemplative scientist will point out, our understanding of what meditation can do for us in its infancy. However, this investigation sets out the progress made in understanding meditation related to structural changes in the brain. The researcher identified 21 studies that imaged the brains of meditators, looking for structural changes. Although most of the research was cross-sectional in nature some ‘before and after’ examples are included.

This project reviewed research that used any of the six leading measures of structural changes in the brain (volumetry, concentration, thickness, fractional anisotropy (FA), diffusivity (axial and radial) and gyrification). The selected papers were qualitatively reviewed and also subject to an anatomical likelihood estimation (ALE) meta-analysis. Qualitative results highlighted nine brain areas that might have undergone structural alteration as a result of meditation practice. Seven areas of grey matter: anterior/mid-cingulate cortex, fusiform gyrus, hippocampus, inferior temporal gyrus, insular cortex, rostrolateral prefrontal cortex, somatomotor cortices and two white matter pathways: corpus callosum, superior longitudinal fasciculus.

Although Lazer et al. made efforts to link the results of morphometric neuroimaging to a range of functional studies there are a number of problems in this approach. There is little structure in how meditators and meditation methods are grouped together,  both in creating the meta-analysis and explanations for alterations in brain structures. This in part reflects the limitations of the 21 neuroimaging studies used, it is also linked to the widely documented problems in the theoretical frameworks used by contemplative science. For example, common features are looked for in diverse experiments using different forms of meditation, both secular and spiritual. Although the participants from the experimental groups cited in the studies had all meditated, they often differ significantly in the methods they use, frequency and duration of practice and time spent in intensive meditation retreat.

Despite the limitations, which are in large part symptomatic of meditation research in general, this remains an influential study fo0r both cognitive psychology and neuroscience.


Deepening crisis in meditation research

Is contemporary mindfulness a meditation practice or something different?


Two leading researchers from contemplative science respond to a critical study of meditation and mindfulness research.

Authors: Richard J. Davidson and Cortland J. Dahl

Year: 2018

Title: Outstanding Challenges in Scientific Research on Mindfulness and Meditation

Summary: The article begins by applauding the critique of Van Dam et al. This is only to be expected, published meditation and mindfulness research often falls short of the methodological standards normally required of journal articles in cognitive psychology and neuroscience. The authors address the five points raised by the original paper in a very linear fashion, not appearing to engage with the underlying issues. The same issues that have dogged meditation research since the launch of MBSR. However to summarize the five rebuttals contained in the paper:

1 – The criticisms of meditation research reflect weakness in psychological research more generally.

2 – Contemplative practices are varied and scientific enquiry is only able to understand a few limited forms.

3 – Mindfulness and contemplative practices were not originally therapeutic in nature

4 – Research has failed to understand meditation in a relevant context.

5 – Mobile technology may be able to resolve some of the methodological issues.


Author’s Critique: It is important to note that Davidson and Dahl are leaders in this field, but if they permit I offer some observation as an experienced meditator and trained neuroscientist and cognitive psychologist.

Psychology does not appear to understand meditation in the broadest sense, the (mis)appropriation of the term mindfulness has led contemporary meditation research into a limited field of investigation without clear definitions. For example, the reduction of meditation (or mindfulness) to method alone, existing in isolation to wider cognitive processes is hard to understand in the context of traditional meditation. And it must be acknowledged that the MBSR/MBI movement uses methods ‘congruent’ with traditional meditation.

If we strip the motivation of the meditator from the meditation rationale we change the entire cognitive setting. To use a rough analogy, I can train people to kick a football but if participant A is training just for a course credit and participant B is training to play in the World Cup final we can expect the effect of the training to be different. This doesn’t just mean that comparing traditional and contemporary meditation practices is fraught with difficulty but that the current understanding of how we research meditation needs to be refined. Traditional meditation literature spanning hundreds of years indicates that two people undertaking the same practice may not experience the same effects. Their individual motivation, their capacity to meditate, external conditions such as the availability of a reliable teacher and methods can all play a part. Psychology has the instruments to consider and account for many of the factors presumed to impact on the effect of meditation, but generally, the method alone dominates the thinking of meditation scientists.

Don’t misunderstand me, the study of MBSR and related families of mindfulness are legitimate objects of clinical enquiry and experimental study. They have however unconfirmed connections with mindfulness in its many forms as practised in spiritual traditions. Buddhism is not one unified tradition, there are different approaches to what one might call mindfulness, these extend from ‘bare attention’ through to ‘shine’ as practised in Tibetan traditions. Often shine is only engaged with after many years of stable foundational practice and if approached from the Vajrayana perspective would be embedded in a context of a nondual appreciation of human consciousness.

The ability of the meditation teacher and the degree of challenge to dualistic thinking are just two factors able to meditate the impact of a meditation method. But these and other components are generally ignored by scientific studies, even strategic reviews and meta-studies. In a traditional context, a meditation master may undertake decades of practice and study to understand meditation on theoretical and experiential levels. Therefore the capacity of the meditation teacher is an established factor in the progress of traditional meditation students but this is rarely discussed in the scientific literature. The point is that the assumption that the teaching of the meditation method is not a potential variable in any experiment is probably unscientific. The Van Dam et al. study is one of the first to suggest the role of the teacher can influence the effect of meditation training on participants.

Leaving aside traditional mindfulness methods, the reliability of the term mindfulness in relation to MBSR and other contemporary practices needs some further work. Several recent studies have highlighted a lack of consistency in the way mindfulness is understood and thus operationalised. Perhaps this is the single biggest challenge meditation research faces today. If there is a weakness in the reliability over what mindfulness is, how it is understood, applied and taught, it makes experimental replication difficult. Without methodologically sound replication the building blocks to advance meditation research can’t be put in place. This I think is the main message from the Van Dam et al. review. Consider that the scientific investigation of meditation in the west is at least 45 years old, an estimated 15,000 meditation studies have been published in that time and yet experimental work is still often described as ‘preliminary’. What is the strategy to elevate meditation research to a more reliable footing?

Measuring loving kindness-compassion

To what extent can loving kindness and compassion be reliably measured?

Title: The development and validation of the Loving kindness-Compassion Scale (LCS)

Authors: Hyunju Cho, Seunghye Noh, Sunghyun Park, Seokjin Ryu, Ven Misan and Jong-Sun Lee 

Year: 2017 (online), 2018 (print)

Summary: The thorny issue of effective trait and state scales for both loving-kindness and compassion is far from resolved in psychology. In fact if anything it is less clear now than it was a decade ago. One of the problems can be attributed to attempts to merge or unify concepts with subtle differences and specific cultural weighing factors. This paper explains some of the express differences between compassion and loving-kindness from a classical perspective. And the justification for drawing them together is found in the ‘boundless state of mind’. However, it is reasonable to ask in what way can the unlimited nature of mind be evaluated using limited psychometric measures? To what extent the LCS can align two distinct concepts in one scale will emerge over time.

The three reported highlights of the paper were

  • The LCS reflects the Buddhist concept of lovingkindness-compassion.
  • The LCS consists of three-factor with fifteen items.
  • The reliability and validity of LCS were adequate within our study.

This study was based on the definitions of compassion within a branch(es) of the Theravada tradition. So it should be stated at the outset the precise meanings established as a starting point may not reflect the whole family of Buddhism. This is not to say that other Buddhist schools (Zen, Mahayana or Vajrayana) might not wholly or partially share the definitions used. Simply that the definitions may not be representative of the wider Buddhist community. It should also be noted that the measures, therefore, may not reflect the explicit, not dual and absolute compassionate approaches found elsewhere in the Buddha Dharma.

Nevertheless, this paper established fifteen items within three factors through the use of exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The results suggest that LCS was significantly correlated with self-compassion, compassionate love, social connectedness, empathy and satisfaction with life. This study used 469 university students as participants and the data supports the reliability and validity of the LCS to measure lovingkindness-compassion.

An extremely useful investigation into compassion and loving-kindness raises several important questions.


How much does science know about meditation?

Scientific understanding of meditation and mindfulness

Science and meditation
Science and meditation

Blogging about a related issue at Meditation for Health prompted me to think about how much does science really know about meditation and mindfulness. Leading scientists in the field state that empirical meditation research is at a relatively early stage. But relative to what? Surely not the efforts of the scientific community, thousands of scientific studies have already been published that explored meditation and/or its presumed operationalised components. It should also be considered that there is a vast body of traditional texts available, documenting many aspects of contemplative sciences over the last two thousand years. Contemporary research should also have benefited from the millions of current practitioners, including meditation masters with great experience of practice and underlying theoretical frameworks. It is hard to imagine more auspicious conditions for the study of meditation, so why is the research struggling to make significant progress?

After I had been meditating for five years I asked a traditional meditation teacher what the goal of my particular practice was. She stripped away the esoteric imagery in which the practice was framed and explained the likely result of my efforts. In particular, she emphasized the importance of my motivation. The idea that the method alone is not the practice is central to many forms of meditation and contemplation. In fact, traditional literature from Tibetan Buddhism makes it clear that progress in a particular method may require the application of significant levels of compassion or non-attachment. It is not my suggestion that a western scientific approach cannot fully understand the processes engaged in different forms of meditation. But rather it might be time to start to think about the phenomena underpinning meditation in a more complete way, even within cognitive psychology or neuropsychology. In some traditional schools, meditators are discouraged from evaluating the progress of others. But when you meditate cheek by jowl in a community of meditators for years, you may inevitably observe differences in the effects of the same meditation practice on different people.

Whilst the capacity of practitioners (individual differences) is a known factor in the experience of meditation. An individual’s motivation is also central to the benefits of a practice. This is a paradigm for all meditators and mindful practitioners in all settings. Unless a scientist can integrate the enthusiasm, scepticism and goals of the meditator into the input part of the equation, great uncertainty regarding the output is inevitable.  In a survey of meditators and mindfulness practitioners (Morris, 2017) that included both types of practice and reasons for commencement. The motivation of practitioners was very varied. Among the cited reasons for beginning meditation or mindfulness were:        

Motive %
To improve my health 12
To improve my general well-being 43
For spiritual/religious reasons 22
As a lifestyle choice 6
Because of the influence of others 3
Any other reasons 14

There are reasons to suppose that the motivation of a meditator is a significant influencer on the results of a practice. The empirical approach has a great deal to offer the investigation of meditation, it can help to construct reductionist models able to identify the elements contemplative practice. But we are perhaps at a point when a fuller understanding of meditation and meditators needs to evolve.



Morris, S. (2017), An exploration of the relationship between wellbeing and meditation experience amongst meditators and mindfulness practitioners. The Open University, Milton Keynes. Unpublished

The Great Divide – Non Dual/Dual Meditation

Dualism is a crucial issue in the understanding and practice of meditation.


Author: Josipovic, Z.

Year: 2014

Title: Neural correlates of nondual awareness in meditation

Summary: Many practitioners of nondual meditation have a theoretical and experiential understanding of nondual awareness (NDA). NDA has been described simply as an appreciation of the limitations of subject-object dichotomies. Perception of phenomena as dualistic and non dualistic permeates every aspect of our lives, but NDA is the relative state when we become aware of our habitual fluctuation between dual and nondual views. Neurologically speaking NDA increasingly appears to be fundamentally different from dualistic thought and indeed dualistic meditation. In terms of methodologies, meditation systems can be divided many different ways. But one of the most important and least researched categorisations is between the dual and nondual approaches. Josipovic offers an insight into the nondual approach and explains why and how it is different from other forms of meditation.

Supported both by contemporary experimental evidence and traditional explanations (to some extent). Josipovic presents a study exploring a neuroscience basis for NDA through the relational activity in intrinsic and extrinsic networks during three different forms of meditation (NDA, focussed attention and fixation). Results indicate a reduction during nondual meditation of the negative correlation between the intrinsic and extrinsic networks when compared to both fixation and focussed attention. It should be noted  that there are neuroscience and cognitive studies that both support and contradict Josipovic’s hypothesis. However only when reviewed alongside research demonstrating the limitations of intrinsic network suppression can the full potential of his insight be appreciated.


Editor’s Note: The scientific exploration of meditation in all its forms has been hampered by a (much reported) failure to establish authoritative theoretical frameworks. Josipovic has provided an approach which appears to successfully encompass the traditional explanations of NDA and can support phenomenological accounts integrated within a neuroscientific context.

Perspective: Contemplative science, neuroscience


Putting the Meditator at the Centre of the Research

Meditators know the most about meditation, if science ignores them they miss a trick.


(The research is now complete, thanks to all who participated)

Do you meditate or practice mindfulness?

I am currently undertaking an academic survey into meditation and wellbeing. I would like to ask meditators over the age of 18 to complete a short anonymous questionnaire about their practice (it should take around ten minutes). The research has been ethically approved and conforms to all the usual academic norms.

This important research seeks to capture the meditation and mindfulness experience of practitioners of different levels of experience and backgrounds. Based on meditators self reported insights, this projects follows recent signposts in contemplative science putting greater emphasis on the experiential nature of mindfulness and meditation.



Is Mindfulness Buddhist and Does its Social Context Matter?

Can mindfulness be regarded as a Buddhist practice?


Title: Is mindfulness Buddhist? (and why it matters)

Author: Robert H. Sharf

Year: 2015

Summary: Modern mindfulness meditation is often associated with the state of ‘bare attention’, paying attention in the moment, non judgementally but deliberately. This particular state is not without established precedent in different schools of Buddhism and Robert H. Sharf outlines examples from Burmese reformed Buddhism, the Chinese Chan and Tibetan Dzogchen traditions. This paper also highlights issues associated with the theoretical framework for mindfulness in Buddhism and the relationship between the transformative potential of meditation and the wider context within which meditation is undertaken.

Perspective: Religious studies, psychiatry, health psychology


No Agreement over the Meaning of the Term Mindfulness

What is the authentic meaning of mindfulness?


Title: What does mindfulness really mean? A canonical perspective

Author: Bhikkhu Bodhi

Year: 2011

Summary: The mindfulness movement is inextricably linked with Buddhism, both Buddhist teachings and meditation practice. It is then of particular interest when Buddhist scholars of the Pali Cannon, such as Bhikkhu Bodhi question one of the most widely used definitions of mindfulness; ‘bare attention’. This is not simply a philological debate regarding the development and use of the term mindfulness but also a discussion of the fundamental understanding of the human behaviour of meditation. There is also the question of the appropriation and ‘translation’ of the term mindfulness into secular contexts and the implications for both Buddhism and the secular meditation schools.

Perspective: Religious studies