Published by Advaita Ashrama, 66 pages, Paperback.
Characterized by extreme brevity of expression on the one hand and marvelous sublimity of thought on the other, this work of Sri Shankara contains the quintessence of the Upanishads. Its subject-matter is the same as that of the "Mandukya Upanishad", presenting the theoretical aspect of the One Reality and the practical way of realizing one's identity with It in Samadhi through the help of the time-honored symbol, AUM.