Hayagriva

Hayagriva (Skt. Hayagrīva; Tib. རྟ་མགྲིན་, Tamdrin; Wyl. rta mgrin) — the wrathful manifestation of Avalokiteshvara who symbolizes enlightened speech, usually depicted as red in colour and with a horse's head protruding from his crown.

Hayagriva is one of the eight principal deities of Kagyé and referred to as Péma Sung (Wyl. pad ma gsung), 'Lotus-like Speech', in this particular mandala.