Yoga is not a religion-Yoga is pure science just like mathematics, physics or chemistry.What survives of yoga today are mostly the physical exercises that have helped people to achieve a more balanced and relaxed state in their lives. But in fact, as Osho explains in this book, the postures did not come first; rather, people began to notice that whenever they were in a state of meditation, the body naturally took on certain postures. It is possible to bring a certain peace by arranging the body in a posture that corresponds to this peace. But it is a misunderstanding to think that it is the cart that pulls the horse. Drawing from Yoga's original teachings, Osho clarifies this mind-body relationship and reveals yoga not only to be a set of physical exercises but what he calls a 'science of the soul'.