vajradhātu, 金界 The 'diamond', orvajra, element of the universe; it is the 智 wisdom of Vairocana in its indestructibility and activity; it arises from thegarbhadhātu胎藏界q.v., the womb or store of the Vairocana 理 reason or principles of such wisdom, v. 理智. The two,garbhadhātuandvajradhātu, are shown by the esoteric school, especially in the Japanese Shingon, in twomaṇḍalas, i.e. groups or circles, representing in various portrayals the ideas arising from the two, fundamental concepts.vajradhātuis intp. as the 智 realm of intellection, andgarbhadhātuas the 理 substance underlying it, or the matrix; the latter is the womb or fundamental reason of all things, and occupies the eastern position as 'cause' of thevajradhātu, which is on the west as the resultant intellectual or spiritual expression. But both are one as are Reason and Wisdom, and Vairocana (the illuminator, the 大日 great sun) presides over both, as source and supply. Thevajradhāturepresents the spiritual world of complete enlightenment, the esotericdharmakāyadoctrine as contrasted with the exotericnirmāṇakāyadoctrine. It is the sixth element 識 mind, and is symbolized by a triangle with the point downwards and by the full moon, which represents 智 wisdom or understanding; it corresponds to 果 fruit, or effect,garbhadhātubeing 因 or cause. The 金剛界五部 or five divisions of thevajradhātuare represented by the Fivedhyāni-buddhas, thus: centre 大日Vairocana; east 阿閦 Akṣobhya; south 寶生Ratnasambhava; west 阿彌陀 Amitābha; north 不空成就 Amoghasiddhi, or Śākyamuni. They are seated respectively on a lion, an elephant, a horse, a peacock, and agaruda. v. 五佛; also 胎.