Heruka (Sanskrit; Wylie: khrag ‘thung), is the name of a category of wrathful deities, enlightened beings in Vajrayana Buddhism that adopt a fierce countenance to benefit sentient beings. In East Asia, these are called Wisdom Kings.
Herukas represent the embodiment of indivisible bliss and emptiness. They appear as Iṣṭha-devatā or meditational deities for tantric sādhanā, usually placed in a mandala and often appearing in Yab-Yum.
(click on images to view galleries
click on page numbers to continue slideshow)