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.
I hate this world, this dream, this horrible nightmare, with its churches and chicaneries, its books and blackguardisms, its fair faces and false hearts, its howling righteousness on the surface and utter hollowness beneath and, above all, its sanctified shopkeeping!
-Swami Vivekananda