This book is a facsimile reprint and may contain imperfections such as marks, notations, marginalia and flawed pages. 1927. By the study of Yoga, darkness or ignorance is replaced by light, and undesirable tendencies are eliminated and by degrees man becomes the master. This book claims to develop the individual to a Master within the shortest possible time. It provides daily automatic practice of these systems which enable an individual to develop even while busily engaged at his occupation.