Beloved Lord Kind Dissolver
the first promulgator and
introducer of yoga

His color is black. He has anointed his entire body with sacred ash. On his head is matted hair and it is graced with the radiant crescent moon. From his matted hair the waves of the Holy Ganges flow. On his forehead are three streaks of ash and the Eye of the Cause (third eye). Coiled earrings adorn his ears, and the snake and the rosary of the third eye berries adorn his neck. To the right are the trident and the hourglass-shaped drum. Being established in the accomplishment posture, he is in equanimity.

from Revealing the Secret p. 1

image from a popular Indian postcard