The cosmology of the Norse mythology has nine homeworlds unified by the world tree Yggdrasil. The Norse creation myth tells how everything came into existence in the gap between fire and ice and how the gods shaped the homeworld of humans.
n Norse mythology, the World Tree called Yggdrasill runs like a pole through this world and the realms above and below it. Yggdrasill is a great ash tree that connects all living things and all phases of existence.
This shows how the Vikings viewed their Gods and their ideas of Heaven and Hell. The Vikings believed that they would one day join their Gods in Valhalla, much as the Christians believed they would join Jesus and God in Heaven.
Yggdrasil & tree& (In Norse mythology, Yggdrasil (/ˈɪɡdrəsɪl/; from Old Norse Yggdrasill, pronounced [ˈyɡːˌdrasilː]) is an immense tree that is central in Norse cosmology, in connection to which the nine worlds exist.