All such ambiguities disappeared under the influence of Iranian dualism. In the Book of Job we find the infliction of diseases and plagues completely transferred to a powerful spirit, a fully formed opposing potentate. The 'sons of God,' who in the first chapter of Job are said to have presented themselves before Jehovah, may be identified in the thirty-eighth as the stars which shouted for joy at the creation. Satan is the wandering or malign planet which leads in the Ahrimanic side of the Persian planisphere. In the cosmographical theology of that country Ormuzd was to reign for six thousand years, and then Ahriman was to reign for a similar period. The moral associations of this speculation are discussed elsewhere; it is necessary here only to point out the bearing of the planispheric conception upon the ills that flesh is heir to. Ahriman is the 'star-serpent' of the Zendavasta. 'When the pâris rendered this world desolate, and overran the universe; when the star-serpent made a path for himself between heaven and earth,' &c.; 'when Ahriman rambles on the earth, let him who takes the form of a serpent glide on the earth; let him who takes the form of the wolf run on the earth, and let the violent north wind bring weakness.' [178] The dawn of Ormuzd corresponds with April. The sun returns from winter's death by sign of the lamb (our Aries), and thenceforth every month corresponds with a thousand years of the reign of the Beneficent. September is denoted by the Virgin and Child. To the dark domain of Ahriman the prefecture of the universe passes by Libra,--the same balances which appear in the hand of Satan. The star-serpent prevails over the Virgin and Child. Then follow the months of the scorpion, the centaur, goat, &c., every month corresponding to a thousand years of the reign of Ahriman.