Hevajra is also one of the popular Yidam deity of Nepalese Buddhism belonging to Highest Yoga Tantra. In Hevajra Tantra, Hevajra is defined as thus:

Hevajra symbolizes Great compassion and Vajra symbolizes Wisdom (prajna). Within the composite name of Hevajra the essence of wisdom and compassion is contained in its entirety. In the Hevajra Tantra his form is described thus:

Hevajra is dark blue with a radiant aura. Hevajra has red eyes and yellow hair coiled and knotted at the top of his head. He is adorned with Pancamudra i.e. the circlet, the earrings, the necklace, the wrist, bracelets and the girdle. These five ornaments symbolize the purified aspects of five delusions. He appears wrathful and wears a tiger skin. He holds a skull in his left hand and a khatvanga rests in the crook of his left shoulder. He holds a black vajra in his right hand. He originates from the seed syllable Hum.

In his four arms form, he holds a human skull filled with the blood of the devas and asuras with his left hand and a vajra in his right hand. His remaining two hands embrace his consort Vajravarahi.

In his six-armed form, he has three faces red, blue and white. His six arms symbolize the six perfections. He holds a vajra and a knife with his two right hands and a trident and a bell in his two left hands. The remaining two hands embrace his consort Vajrasrinkhala holding a kartri and a kapala. He tramples a corpse which represents the three realms.

It is said that the practice of Hevajra and his consort is not to be disclosed to the others who have not received the empowerment. If the sadhaka does not conceal the practice it causes misfortune from snakes, fire, thieves, elementals and earth spirits.