In Tibet, Hayagriva was promoted especially by Buddhist teacher Atiśa and appeared as a worldly dharmapala. His special ability is to cure diseases, especially skin diseases even as serious as leprosy, which is said to be caused by nāgas.
In Japanese Mahayana Buddhism, Hayagriva is considered a form of Avalokiteśvara with wrathful form (Batō Kannon 馬頭觀音, lit.Hayagrīva-Avalokiteśvara) , one of the six Avalokiteśvaras intended to save the sentient beings of the six realms: deities (deva), demons (asura), human beings, animals, hungry ghosts, beings of hell. Hayagriva’s sphere is realm of animals (or beings whose state of mind are animal-like). In Folk religion in Japan, Hyagriva was also worshipped as the guardian deity for horses because of its name Horse-head (Batō). The horse was symbolized as a vehicle, not as one of Hayagriva’s heads.
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