[djtriptych]

The tradition of yoga is far more than exercise. Many parts of it, including the exercise, deep breathing, and meditation, are indeed testable and outperform placebo.

Your concept of self is something that certainly happens but is largely outside the realm of science.

Doing mushrooms certainly might impart an understand of, at the very least, the experience of being high on mushrooms. Or perhaps which parts of your perception are merely the reflection of a specific neurochemical balance.