of the Bodhisattva of compassion Avalokiteshvara (Tibetan: Chenrezig , Chinese: Guanyin ). This mantra is particularly associated with the four-armed Shadakshari form of Avalokiteshvara. The Dalai Lama is said to be an incarnation of Avalokiteshvara, and so the mantra is especially revered by his devotees. The book Foundations of Tibetan Mysticism by