To think is to practice brain chemistry.

The line compresses a materialist-sounding claim into a memorable aphorism: thinking is not an immaterial activity floating free of the body, but something enacted through the brain’s physical processes. Read charitably, it underscores the intimate linkage between mental life and neurochemistry—every thought corresponds to patterns of neural firing and neurotransmitter activity. In Chopra’s broader rhetorical style, such a phrase can also function as a bridge between “mind” and “body,” suggesting that mental habits are a kind of repeated practice that can shape bodily states. The punchy formulation invites reflection on how cognition, emotion, and physiology continually co-produce one another.