This book is an abridgement of Uttara Yogi’s [Sri Aurobindo’s] book “Yogic Sadhana” published in 1911. This has a lot of hints regarding how to practice the Sadhana envisaged by him. Power, Will, Nature, Knowledge, Mind, Chitta, Prana, Body are explained from Yogic point of view in details and how to put them to Yogic practice.