Divine Ennead - Heliopolitan Origin Myth

According to the Heliopolitan Tradition, the world began as a watery chaos called Nun, from which the sun-god Atum (later to identified with Re) emerged on a mound. By his own power he engendered the twin deities Shu (air) and Tefnut (moisture), who in turn bore Geb (earth) and Nut (sky). Geb and Nut finally produced Osiris, Isis, Seth and Nephthys. The nine gods so created formed the divine ennead (i.e. company of nine) which in later texts was often regarded as a single divine entity. From this system derived the commonly accepted conception of the universe represented as a figure of the air-god Shu standing and supporting with his hands the out-stretched body of the sky-goddess Nut, with Geb the earth-god lying at his feet. (mnsu.edu)