This book forms a companion volume to the Swami's Universal Prayers. In the Introduction a detailed and systematic account of the theory and practice of spiritual life is given. The main body of the book containing Sanskrit texts and their English translations, presents a large number of important scriptural passages through which the ancient sages and seers of India enlighten us on ethics, philosophy and practice of meditation.
Anything that is secret and mysterious in these systems of yoga should be at once rejected. The best guide in life is strength. In religion, as in all other matters, discard everything that weakens you, have nothing to do with it.
-Swami Vivekananda