The Buddha's Teachings, Tested by Practice and Science
The Three Characteristics of All Conditioned Things
All conditioned phenomena, everything we experience, are marked by three qualities- they are impermanent (anicca), they cannot provide lasting satisfaction (dukkha), and they are not “self” (anattā). This is not a belief to accept but a truth to observe. Through mindfulness and insight meditation, practitioners verify each characteristic moment by moment. Modern science is beginning to map the neural correlates of these insights.
Impermanence (Anicca)
The Buddha taught that all conditioned phenomena arise and pass away. Nothing lasts. Through insight meditation, practitioners directly experience the moment-by-moment dissolution of all experience. Modern neuroscience now maps the brain’s transient processing in ways that parallel this ancient insight.
Unsatisfactoriness (Dukka)
Dukkha is not just pain, it is the inherent unsatisfactoriness of all conditioned experience. Even pleasure, when clung to, becomes a source of discontent because it cannot last. Through insight meditation, practitioners observe how craving for pleasant experience inevitably leads to dissatisfaction. Cognitive science confirms what the Buddha described: the mind adapts to stimuli, making lasting satisfaction through acquisition impossible.
Non-Self (Anattā)
The Buddha taught that what we call “self” is not a permanent, unchanging entity but a flowing process. Through insight meditation, practitioners observe each aggregate arising and passing, revealing no controller behind them. Neuroimaging studies now show that advanced meditators exhibit decreased activity in brain regions associated with self-referential processing—a measurable correlate of the Buddha’s teaching on non-self.