The most popular myth in this respect is Pangu the Creator. It is popular among most peoples in China. There are almost ten versions, oral and written. Let us look at this most well-known one and work out some most basic motifs of Chinese culture.
At first the universe was in chaos. In the shape of an egg, it was an undifferentiated, indivisible whole. Pangu the Creator was born into this entity. He was an almighty giant. He kept growing every day until he separated the universe into heaven and earth with his sheer muscular strength. When this was done, the sky and the earth were still connected at various points. So he stuck to his work with a chisel and an axe until the great feat was accomplished. After this, he continued growing and so was the world, with the sky and the earth farther and farther apart. He lived for thousands of years till he died of exhaustion.
Upon his death, his body changed into various things. His breath became winds and clouds, with the clearer breath going up to heaven, the coarser part sinking down to earth. His left eye turned into the sun and his right eye became the moon. His arms and legs were transformed into the four corners of the earth and parts of his body turned into the various mountains. His blood formed the rivers and his veins the roads. His flesh became the soil and his skin and body hair were transformed into the trees and plants. His teeth and bones turned into rocks and metals, his marrow changed into pearls and jade. His hair and mustache were transformed into stars. His sweat fell as rain, nourishing all things. The insects on his body took the shape of men and women. Hence the world finally became what it looks like today.