Wishing to celebrate his reign by the erection of a great Buddhist temple and image, he took advice of Gyōgi, a priest renowned to this day for many services to civilization, and despatched him to Ise with a present for the Sun-Goddess of a relic of Buddha. Gyōgi spent seven days and seven nights in prayer under a tree close to the gate of the shrine, and was then vouchsafed an oracle in the form of some couplets of Chinese verse couched in purely Buddhistic phraseology. It spoke of the Sun of truth enlightening the long night of life and death and of the Moon of eternal reality dispersing the clouds of sin and ignorance. This was interpreted to mean that the Sun-Goddess identified herself with Vairochana, called by the Japanese Birushana or Dainichi (great Sun), a person of a Buddhist trinity and described as the personification of essential bodhi (enlightenment) and absolute purity. The Sun-Goddess subsequently appeared to the Mikado in a dream and confirmed this view of her character. The temple (Tōdaiji) founded by Shōmu—though not the original building—is still in existence. It contains the famous colossal statue of Birushana, which is at this day one of the wonders of Japan.
The principle of recognizing the Kami as avatars or incarnations of Buddhist deities, of which the case of the Sun-Goddess and Vairochana was the first in Japan—it had been already applied in China to Laotze and Confucius—was subsequently much extended, and, with a spice of Chinese philosophy added, formed the basis of a new sect called Ryōbu Shinto. Its Buddhist character is indicated by its name, which means "two parts," the two parts being the two mystic worlds of Buddhism, namely, the Kongôkai and the Taizōkai. The principal founder of Ryōbu was the famous (and fabulous) Kōbō Daishi (died 835), to whom the invention of the Hiragana syllabary and quite a miraculous number of sculptures, writings, and paintings are ascribed. The sect of Buddhism engrafted by him on Shinto is that known as Shingon (true word). It is not
