Synopsis Yoga is one of the oldest systems of Indian Philosophy and Patanjali is the founder of this system.  Condensed in one hundred and ninty-six aphorisms or sutras are the essential philosophy and technique of Yoga.  Over the centuries, scholars and teachers of Yoga have attempted to expand these sutras with commentaries and explanations.  The aim of Yoga is rid the mind of its modifications in order to attain self realization.  Cit has multifarious modifications under the stress and strain of the three gunas.  This work offers an authentic and fully comprehensive study exposing the basic concepts as well as their practical aspects.  The book is a reliable compendium covering the whole gamut of philosophical problems and metaphysical issue, concerning the Yoga system.