The Buddha's Teachings, Tested by Practice and Science
Buddha's Three Core Teachings
Tilakkhaṇa – The Three Characteristics
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 (Dukkha)
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)
Nothing exists independently. Everything arises dependent on conditions. The Buddha mapped this causal chain, from contact to feeling to craving to clinging to suffering, and showed that it can be interrupted at the crucial link between feeling and craving. Through insight meditation, practitioners observe this causality in real-time, noting sensations without reacting, thereby breaking the chain at the point of contact. Cognitive science describes parallel self-reinforcing loops that insight practice disrupts by observing without reaction.