In Chinese mythology, Pan Gu was the god who created the world. Heaven and earth were originally formless and indistinct, like an egg, with Pan Gu living in the middle. After 18,000 years, heaven and earth split (another version has it that Pan Gu split them with a huge axe). The light part, resembling egg white, rose up and became heaven. The heavy part, resembling egg yolk, sank down and became the earth. Each day heaven increased in height, and so did Pan Gu. After his death, the parts of his body became the sun, moon and stars, rivers and mountains, minerals and stone, and grass and forests.