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.
God is self-evident, impersonal, omniscient, the Knower and the Master of nature, the Lord of all. He is behind all worship and it is being done according to Him, whether we know it or not.
-Swami Vivekananda