Sankara's 'thousand teachings' on the distinction between the senses, mind, body, intellect, and the true Self. In translating as well as in drawing up the notes, the author has closely followed the authoritative commentary of Ramatirtha.
The world is ready to give up its secrets if we only know how to knock, how to give it the necessary blow. The strength and force of the blow come through concentration.
-Swami Vivekananda