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.
If a person who lives in God becomes miserable, what is the use of living in God? What is the use of such a God? Throw such a God overboard into the Pacific Ocean. We do not want such a God!
-Swami Vivekananda