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.
That which is nearest is least observed. The Atman is the nearest of the near, therefore a careless and unsteady mind gets no clue to the Atman. But one who is alert, calm, self-restrained, and discriminating, ignores the external world and, diving more and more into the inner world, realizes the glory of the Atman and becomes great.
-Swami Vivekananda