The world is divided into two parts: the sky and the land. The sky is above and the land is below. The sky touches the land everywhere. The land touches the sky everywhere. The sky is the same size as the land. People live in between sky and land. What happens in the sky determines what happens to the people and to the land. Sun, rain, wind. But the people can control the sky by dancing the right sort of dance and chanting the right sort of chant.