The main object of this book is to discuss the science of Yoga in as simple and rational a manner as possible, and also to debunk some of the nonsense that continues to be said and believed on the subject. A must for all those are eager to clarify their conception about Yoga.
The greatest sin is to think that you are weak. No one is greater: realize that you are Brahman. Nothing has power except what you give it.
-Swami Vivekananda