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.
Bless people when the revile you. Think how much good they are doing by helping to stamp out the false ego. Hold fast to the Atman, think only pure thoughts, and you will accomplish more than a regiment of mere preachers.
-Swami Vivekananda