The symbol of the nine worlds

The symbol of the nine worlds. In the cosmology of Scandinavian mythology, there are "nine home worlds" united by the world tree Yggdrasil. The mapping of the nine worlds eludes precision because the Poetic Edda often makes vague references to them, and the Prose Edda may be influenced by medieval Christian cosmology. The Scandinavian creation myth tells how everything arose between fire and ice, and how the gods shaped the homeworld of humans.