Yab-yum is widely regarded as representing the primordial union of wisdom and compassion. The masculine form is active in Buddhism, representing the compassion and skillful means that must be developed in order to achieve enlightenment. The feminine form is passive and represents wisdom, both of which are required for enlightenment. The figures, when joined, represent the union required to remove the veils of Maya, the false duality of object and subject.

These figures are frequently worked into statues or reliefs, or they are painted on thangkas. Yab-yum can also be represented by the aniconic symbols yantra and mandala.

In Tibetan Buddhism
In Tibetan Buddhism, the same ideas are to be found concerning the bell and the dorje, which, like the yab-yum, symbolize the dualism that must be transcended. The sacred Tantric practice leads to rapid development of mind by using the experience of bliss, non-duality, and ecstasy while in communion with one's consort, either visualized, or in the case of advanced practitioners, in some cases physical. In one important Anuttarayoga text, where Tilopa expounds the meaning to Naropa, it is said:

When you rely on a consort, the wisdom of empty bliss will arise, so enter into union—the blessing of method and wisdom. Bring it down slowly, retain it, reverse it, and draw it back up. Bring it to the places in the body and let it spread throughout. When you remain free of desire, the wisdom of empty bliss will appear.

Indicating the advanced nature of the actual practice with consort, the verses are the last in what is already widely considered as a text for the most advanced practitioners, a fact clearly evident in the story about Naropa's receiving the teaching.