This book incorporates some of the practical lectures on devotion delivered by Swami Vivekananda. Here he discusses the preparatory disciplines, the importance of the guru and how to choose one, the principles of ritual worship, the chosen ideal, and finally, the supreme love. This book differs from the Swami's Bhakti Yoga lectures, not in subject matter, but in his treatment of the subject here in an intensive, yet more easily appreciable form.
Nature, body, mind go to death, not we. We neither go nor come. The man Vivekananda is in nature, is born and dies; but the Self we see as Vivekananda is never born and never dies. It is the eternal and unchangeable Reality.
-Swami Vivekananda