Accordint to Chinese legend， in the beginning there was nothing in the universe but a dark， formless chaos. One day， the mythic hero Pangu， who had been sleeping in the chaos for 18，000 years， woke up. When he realized that he was confined to this dark and chaotic environment， he decided to break out. He mightily swung his giant axe to smash through the chaos. This caused the lighter parts of the universe to rise up and become the sky， while the heavier parts sunk down and became the earth. In order to keep the sky and earth separated， Pangu stood between them and exerted himself to push up the sky. With each day the sky grew higher and the earth grew wider.
　　 After another 18，000 years immersed in the nascent universe， Pangu thought his job was done and he lay down to rest. Then his breath became wind and cloud; voice became thunder; his left eye became the sun and right eye the moon; his hair became stars in the sky; his blood became the rivers and lakes; his muscles became the fertile lands; his bones became minerals; his sweat fell as rain; and his fur became forests and grasslands.
　　 That’s the beginning of the world.