The Spirit of Thunder, for whom Lei Tsu is often mistaken, is represented as an ugly, black, bat-winged Page 200demon, with clawed feet, monkey’s head, and eagle’s beak, who holds in one hand a steel chisel, and in the other a spiritual hammer, with which he beats numerous drums strung about him, thus producing the terrific noise of thunder. According to Chinese reasoning it is the sound of these drums, and not the lightning, which causes death.

A. Gruenwedel, in his Guide to the Lamaist Collection of Prince Uchtomsky, p. 161, states that the Chino-Japanese God of Thunder, Lei Kung, has the shape of the Indian divine bird Garuda. Are we to suppose, then, that the Chinese Lei Kung is of Indian origin? In modern pictures the God of Thunder is depicted with a cock’s head and claws, carrying in one hand the hammer, in the other the chisel.

We learn, however, from Wang Ch’ung’s Lun Hêng that in the first century B. C. , when Buddhism was not yet introduced into China, the ‘Thunderer’ was represented as a strong man, not as a bird, with one hand dragging a cluster of drums, and with the other brandishing a hammer. Thus Lei Kung existed already in China when the latter received her first knowledge of India. Yet his modern image may well owe its wings to the Indian rain-god Vajrapani, who in one form appears with Garuda wings.

Lei Kung P’u-sa, the avatar of Lei Kung (whose existence as the Spirit of Thunder is denied by at least one Chinese writer), has made various appearances on the earth. One of these is described below.