Avalokiteshvara He is the bodhisattva who emanated from the eye of Buddha Amitabha when he was moved to tears by the plight of sentient beings. In this form -- an embodiment of compassion -- he vowed not to return to buddhahood until he had liberated every single individual in all realms of existence. He is said to have manifested in our era as Padmasambhava, and it is in reference to the legend of the manifestation of that Precious Teacher, Guru Rinpoche, in the heart of a giant lotus that we say the famous 6-syllable mantra of Chenrezi: Om mani padme hum. http://www.khandro.net/deities_bodhisattvas.htm