"Patanjali specifically says that there are three paths to the goal of yoga. And they are, control of the breath, control of posture, and light-filled herbs. It says it right there. Stanza 6 of the Yoga Sutras of Patanjali."

Next Quote

A life which goes excessively against natural impulse is... likely to involve effects of strain that may be quite as bad as indulgence in forbidden impulses would have been. People who live a life which is unnatural beyond a point are likely to be filled with envy, malice and uncharitableness.

— Bertrand Russell