(Sanskrit धर्मधातु; Tibetan chöying or chos-nyid) Literally, "realm of dharma." Emptiness, the Absolute. The all-encompassing space which is unoriginated and beginningless from which all phenomena arise.
1. Hinduism: "the nature of things, in the sense of a rule to which they hold."
2. Buddhism: (Mahayana) "the realm of dharmas is the uncaused and immutable totality in which all phenomena arise, dwell, and pass away." The dimension of the Dharmakaya, the cognition of reality (dharmadhatujnana).