The worship of the elements, too, held a prominent place in this complicated system of nature-worship. For example, Fire, considered as derived from the Sun, was the object of profound veneration, and the worship rendered it must have served admirably as a link between the religion of the Incas and that of Pachacamac. Strange as it may seem at first sight, the symbols of fire were stones. But our surprise will cease when we remember that stones were thought, in a high antiquity, to be animated by the fire that was supposed to be shut up within them, since it could be made to issue forth by a sharp blow. The Peruvian religion likewise adds its testimony to that of all the religions of the Old World, as to the importance which long attached to the preservation amongst the tribes of men of that living fire which it was so difficult to recover if once it had been allowed to escape. A perpetual fire burned in the temple of the Sun and in the abode of the Virgins of the Sun, of whom we shall have to speak presently. The wide-spread idea that fire becomes polluted at last and loses its divine virtue by too long contact with men,
