About Hayagriva (Buddhism)

In Tibetan and Japanese Buddhism, Hayagrīva is an important deity who originated as a yaksha attendant of Avalokiteśvara or Guanyin Bodhisattva in India.
Appearing in the Vedas as two separate deities, he was assimilated into the ritual worship of early Buddhism and eventually was identified as a Wisdom King in Vajrayana Buddhism.