It’s a wrong view to consider nondual compassion merely a method; it is really an entire approach to lived experience. Thus from the outset, we need to define what we mean by nondual. You will find many different ways of thinking about the ‘nondual’ in Western academic literature, but traditional forms of meditation use the term to describe one of three primary states of human consciousness. As the name implies, ‘nondual’ consciousness exists in relation to the ‘dual’, and as every new generation of nondual practitioners ‘discovers’ this means nonduality is part of a binary system. This binary system of dual and nondual describes human consciousness. Most humans spend their entire waking (and sleeping) experience fluctuating between the dual and nondual without ever realising. All Buddhist (spiritual?) meditation challenges the belief that the most common configuration of consciousness, the dual, is the only or most important way to experience life.
Several Buddhist schools have developed meditation (mind-training) methods that explicitly reduce our dependency on dualistic consciousness. Many of these nondual approaches are linked to permanent and enduring states of happiness which also have profound health benefits. What’s more, there is clear but preliminary evidence from neuroscience that the dominance of the brain network responsible for dualistic experience is linked to poor health. Unfortunately, because neuropsychology and neuroscience see the world from a dualistic perspective, only a handful of scientific studies demonstrate the importance of nondual meditation.
Many people find this subject challenging, but altering consciousness is actually the point of meditating. The way we see the world, reduce stress, increase happiness, create less damaging psychological habits are all linked to the dual-nondual relationship. There is almost nothing you can do to explain what nondual consciousness is to someone rooted in dualistic thinking (most of us). Several crucial Buddhist texts describe this problem through abstract teachings and metaphors. But as helpful as these guides are, they can take a considerable time (years) to master. However, one naturally occurring human mental state that we use every day can help us resolve the dual-nondual dichotomy; it is compassion.
Most Buddhist practices cultivate compassion, not just because it leads directly to a reduction in suffering but also for its potential as a nondual teaching aid. From both Buddhist and scientific perspectives, we know that compassion has the potential to be active in the dual and nondual brain networks. Over time this can increase the nondual experience of life. This state offers a wide range of mental and physical health benefits but can also lead to rapid spiritual development. Unfortunately practising the method alone will not necessarily develop nondual compassion, you can take a horse to water, but you can’t make it drink. Similarly, meditation is mainly in the mind, so the method alone won’t guarantee positive results without the correct approach and motivation. This is one of the main reasons why a reliable teacher is essential. When we begin these practices, we can easily mistake the experience of dualistic compassion as our goal, and by concentrating on this form, we create new barriers to nondual consciousness. The danger of getting stuck in dualistic meditation is why many experienced practitioners recommend finding a reliable teacher before committing to a specific meditation practice.