The silver one became this earth, the golden one the sky, the thick membrane (of the white) the mountains, the thin membrane (of the yoke) the mist with the clouds, the small veins the rivers, the fluid the sea.

In plain words: The story of the cosmic egg continues. The silver half of the egg became the earth and the golden half became the sky. The egg's inner skins became the mountains and the clouds, its little veins became the rivers, and its liquid became the sea.