they have little to do with mythology, and are analogous to the archangels of Christian and Jewish tradition and to the Amesha Spentas of Zoroastrianism. With these latter they may have some historical connection, for Persian ideas may well have influenced Buddhism about the time of the Christian era. However difficult it may be to prove the foreign origin of Bodhisattvas, few of them have a clear origin in India and all of them are much better known in Central Asia and China. But they are represented with the appearance and attributes of Indian Devas, as is natural, since even in the Pali Canon Devas form the Buddha's retinue. The early Buddhists considered that these spirits, whether called Bodhisattvas or Devas, had attained their high position in the same way as Śâkyamuni himself, that is by the practice of moral and intellectual virtues through countless existences, but subsequently they came to be regarded as emanations or sons of superhuman Buddhas. Thus the Kâraṇḍa-vyûha relates how the original Âdi-Buddha produced Avalokita by meditation and how he in his turn produced the universe with its gods. Millions of unnamed Bodhisattvas are freely mentioned and even in the older books copious lists of names are found,[16] but two, Avalokita and Mañjuśrî, tower above the rest, among whom only few have a definite personality. The tantric school counts eight of the first rank. Maitreya (who does not stand on the same footing as the others), Samantabhadra, Mahâsthâna-prâpta and above all Kshitigarbha, have some importance, especially in China and Japan.