Gnosticism agreed with Christianity in its pessimistic valuation of the world, in its belief in the inability of man to obtain religious salvation by himself, in the necessity for a divine mediation of "Life." Like Christianity, it expected the deliverance of the oppressed souls of men by a supernatural Redeemer. He came down from Heaven upon earth and assumed a human form, establishing, through a mystic union with himself, the connection between the spheres of heaven and earth. He thereby guarantees to mankind an eternal life in a bliss to come. Gnosticism also involves a completely dualistic philosophy in its opposition of God and world, of spirit and matter, of soul and body, &c.; but all its efforts are directed to overcoming these contradictions by supernatural mediation and magical contrivances. It treats the "Gnosis," the knowledge, the proper insight into the coherence of things, as the necessary condition of redemption. The individual must know that his soul comes from God, that it is only temporarily confined in this prison of the body, and that it is intended for something higher than to be lost here in the obscurity of ignorance, of evil and of sin; so that he is already freed from the trammels of the flesh, and finds a new life for himself. The God-Redeemer descended upon earth to impart this knowledge to mankind; and Gnosticism pledges itself, on the basis of the "revelation" received directly from God, to open to those who strive for the highest knowledge all the heights and depths of Heaven and of earth. This Gnosticism of the first century after Christ was a wonderfully opalescent and intricate structure--half religious speculation, half religion, a mixture of Theosophy, uncritical mythological superstition, and deep religious mysticism. In it Babylonian beliefs as to Gods and stars, Parsee mythology, and Indian doctrines of metempsychosis and Karma were combined with Jewish theology and Mystery-rites of Western Asia; and through the whole blew a breath of Hellenic philosophy, which chiefly strove to fix the fantastic creatures of speculation in a comprehensible form, and to work up the confusion of Oriental licence and extravagance of thought into the form of a philosophical view of the world. The Gnostics also called their mediating deity, as we have already seen of the Mandaic sect of the Nassenes, "Jesus," and indulged in a picture rendering of his pre-worldly existence and supernatural divine majesty. They agreed with the Christians that Jesus had been "human."