In Norse mythology, the dwelling place of humankind. According to legend, it was made from the body of the first created being, the giant Aurgelmir (Ymir). The gods killed him and rolled his body into the central void of the universe, forming the land from his flesh, the oceans from his blood, the mountains from his bones, and so on. Aurgelmir's skull, held up by four dwarfs, became the dome of the heavens. The sun, moon, and stars were made of scattered sparks caught in the skull.