It was, however, in Egypt, that magic received its development as an art. The most famous temples in Egypt were those of Isis, at Memphis and Busiris; of Serapis, at Canopus, Alexandria, and Thebes; of Osiris, of Apis, and Phtha. Isis, the wife of Osiris, derives her name from the Coptic word _isi_, or plenty, and would seem to typify the earth; but she is usually represented as the goddess of the moon (Gr. _kerasphôros_, the horn-bearing). Isis was also employed as a personification of wisdom, and to a certain extent she may be regarded as a symbol of the eternal will, her shrines bearing the enigmatic inscription--"I am the all that was, that is, that will be; no mortal can raise my veil." Horus was the son of Isis, and was instructed by his mother in the art of healing. Horus, synonymous with light, is the king or spirit of the sun. Astrological science and magic were earnestly and eagerly studied by the Egyptian priests. It was their belief that the different stars exercised a powerful influence on the human body. Their funeral ceremonies may be quoted as an illustration, for they agree in sharing among the divinities the entire body of the dead. To Ra, or the Sun, they assigned the head; to Anubis, the nose and lips; to Hathor, the eyes; to Selk, the teeth; and so on. To ascertain the nativity the astrologer had only to combine the theory of the influences thus exercised by these star-related gods with the aspect of the heavens at the moment of an individual's birth. It was an element of the Egyptian as well as of the Persian astrological doctrine that a particular star controlled the natal hour of everyone.[1] Through the instrumentality of Orpheus, Musæus, Pythagoras, and others, who had travelled in Egypt, and been initiated by the priests into their mysteries, magic found its way into Greece, and there assumed various novel developments. The Greek sorcery was chiefly manifested in the peculiar rites of the Orpheotelesta, the invocation of the dead, the cave of Trophônios, the oracles of the gods, and the worship of Hekatê. The latter mysterious deity, the moon-goddess, was the patron divinity of the sorcerers. From her, as from one of the powers of the nether world, proceeded phantoms that taught witchcraft, hovered among the tombs, and haunted crossways and places accursed by the blood of the murdered or the suicide. "The Mormô, the Cereops, the Empusa, were among the goblin crew that did her bidding."