Concept
Dharmadhatu

Overview
Dharmadhatu (Sanskrit: धर्मधातु, romanized: Dharmadhātu, lit. 'Realm of Ultimate Reality'; Tibetan: ཆོས་ཀྱི་དབྱིངས་, Wylie: Chos kyi dbying, THL: Chökyi Ying; Chinese: 法界) is the 'dimension', 'realm' or 'sphere' (dhātu) of the Dharma or Absolute Reality.
Entire Dharmadhatu was filled with an infinite number of buddha-lands (Sanskrit: buddhakṣetra) with ineffable number of Buddhas. This realm is beyond of everything, and it is visible only to Buddhas and all other Bodhisattvas in existence.
Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).
Possible passages
Found by search and not yet checked by a person; they may only mention the idea in passing.
The higher life which belongs to this sphere, this supreme enjoyment of truth, which as feeling is called "blessedness," and as conscious thought "contemplation," we may describe generically as the life known to religion. For religion is just this universal domain[184], in virtue of which the _one_ concrete totality of the World comes to each man in union with himself, as his essential substance, while it remains no…
Georg Wilhelm Friedrich Hegel, The Philosophy of Fine Art, volume 1
States what Dharmadhatu is.
The families of their people around supply the societies of these monks with an abundant sufficiency of what they require, so that there is no lack or stint. The disciplinary rules are strictly observed by them. The laws regulating their demeanor in sitting, rising, and entering when the others are assembled, are those which have been practised by all the saints since Buddha was in the world down to the present day…
Confucius, Chinese literature
Close in meaning to Dharmadhatu; the term itself is not named.
Both ideas, that of a world empire embracing the whole of mankind and that of a universe whose centre is the earth and whose boundary is the crystal sphere of the heaven of fixed stars, sprang from the same mythological world-view that also found expression in the conception of a divine State projected from earth into heaven. To these gods, with a supreme deity at their head, belonged the rulership of the world…
Wilhelm Max Wundt, Elements of Folk Psychology Outline of a Psychological History of the Development of Mankind
Close in meaning to Dharmadhatu; the term itself is not named.
Philosophers who discussed Dharmadhatu
Related ideas
- Two truths doctrine
- Buddhahood
- Kleshas (Buddhism)
- Dzogchen
- Śūnyatā
- Mindstream
- Nagarjuna
- Mahayana
- Huayan
- Dharmakāya
- Bodhisattva
- Tathātā
- Buddha-nature
- Dharma
Place in the tradition
Part of Buddhist philosophy.