Yoga the alpha and the omega: discourses on the yoga sutras of patanjali
Yoga is not a religion, remember that. Yoga is not Hindu, it is not Mohammedan. Yoga is a pure science just like mathematics, physics or chemistry. Physics is not Christian, physics is not Buddhist.
Yoga is a science, It is a pure mathematics of the inner being. So a Mohammedan can be a yogi, a Christian can be a yogi, a Jaina, a Buddhist can be a yogi.
Yoga is pure science. And Patanjali is the greatest name as far as the world of Yoga iS concerned. This man is rare, there is no other name comparable to Patanjali. For the first time in the history of humanity this man brought religion to the status of a science. He made religion a science; pure laws, no belief is needed.