in Japanese mythology, is a cave in Japan in a mountain of the province Isje, near the ocean, in which the highest of their gods, Ten-Sio-Dai-Dun, hid himself in order to prove that he was the supreme god from whom all light comes; for when he had hidden himself, the light of the stars went out, and only returned when he again appeared. In the cave is found an idol, sitting upon a cow, which is called Dai-Nitz-no-Rai. Pilgrimages are often made to this cave.