This book authored by Swami Paramananda, an illustrious disciple of Swami Vivekananda, gives a clear, lucid exposition on concentration and meditation, the practice of which directly leads to the attainment of the superconscious state. The book clearly presents the aids to the practice of concentration and meditation, the obstacles encountered therein, and some practical hints from both Eastern and Western thinkers on the subject. This book will serve as a good introduction for students on the subject and will be of invaluable help to all spiritual seekers.