Some say that all gods and all living creatures originated in the stream of Oceanus which girdles the world, and that  Tethys was the mother of all his children.

But the Orphics say that black-winged Night, a goddess of whom even Zeus stands in awe, was courted by the Wind and laid a silver egg in the womb of Darkness; and that Eros, whom some call Phanes, was hatched from this egg and set the universe in motion.

Eros was double-sexed and golden-winged and, having four heads, sometimes roared like a bull, or lion, sometimes hissed like a serpent or bleated like a ram.

Night, who named him Ericepaius and Phaethon Protogenus, lived in a cave with him, displaying herself in triad: Night, Order and Justice. Before this cave sat the inescapable mother Rhea, playing on a brazen drum, and compelling man’s attention to the oracles of the goddess. Phanes created earth, sky, sun and moon, but the triple-goddess ruled  the universe, until her sceptre passed to Uranus.

The Homeric and Orphic Creation Myths, Robert Graves