Allah, the most gracious God, whose dwelling, place is the seventh heaven, completed the work of creation. Seven planes has the heaven and seven planes also the earth--the abode of evil spirits. In the heavenly ways reside the peris, or good spirits; in the earthly darkness the dews, or evil spirits. The light of heaven is in conflict with the darkness of earth--the peris with the dews. The peris soar to heaven, high above the earth; but the dews sink down into the darkness under the earth. Mountains bar the road to heaven, and only the good spirits can reach the Copper Range, whence the way is open to the Silver Mountains and the Hills of Gold. Evil spirits are blinded by the ineffable radiance of heaven. Their dwelling place is the depths of the earth, the entrance to which is at the spring of waters. There tarry the white and the black sheep, into whose wool the evil spirits penetrate, and are so conveyed to their realm on the seventh plane. On the white sheep they return to the earth's surface. Peris and dews are powerful, and both were witnesses of the creation of earth's original inhabitant, the First Man.