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.
This world is nothing. It is at best only a hideous caricature, a shadow of the Real. We must go to the Real. Renunciation will take us to It. Renunciation is the very basis of our true life; every moment of goodness and real life that we enjoy is when we do not think of ourselves.
-Swami Vivekananda