Creation of the Universe
The Cosmic Tree was once a mere sapling planted by no one nor no thing. Then its roots dug down in the Nothing, further and further until barely touching Hel. Its branches are large and leafy, stretching through the stars.
Then one day, nine buds appeared in its leaves. And then one day it bore nine fruits each filled with millions and millions of seeds.

Those buds bloomed into nine flowers, and out of the nine flowers came nine beings. The process of blooming is very long and tedious. So some gods may have partially bloomed before others but others may have bloomed completely before them. The fruit ripened and each fruit was chosen by each being. Each fruit became a realm, the seeds became inhabitants of the realms. And the being that chose each fruit, became a god to rule over them.