The nature of mind is primordially the identity of the three bodies of enlightenment. Its essence is empty, the dharma body. Its nature is lucid, the enjoyment body. Freed upon arising, with no clinging, it is the emanation body. Manifesting as its expression are the male aspect of relative appearance, method, and the female aspect of ultimate emptiness, knowledge. The circle of the Magical Web is the unity of these, a wisdom manifestation of indivisible appearance and emptiness.
From Vajra Wisdom: Deity Practice in Tibetan Buddhism by Kunkyen Tenpe Nyima and Shechen Gyaltsap IV, pages 202–203