The cultivation worlds were always divided up into realms. The mortal realms were numerous, fragile spheres that held the majority of all life. They were born attached to the Heaven Realm that acted as a buffer between the incredible power of the source of all Qi and life.
The Heaven Realm was generally one gigantic land that encompassed many connections to the mortal realms below and the Celestial Fields above. It was not possible to map it out as shifts in natural and artificial events reshaped it constantly.
Further, drastic changes to the Celestial Fields could also affect it across wide swaths of its lands.
Still, the birth of Immortals began there for any cultivators.
After that came the Celestial Fields, the true place of Immortals divided among the 4 layers.
Many assumed the Celestial Fields was the true source of all Qi and Laws that disseminated down to the mortal realms but that was wrong.
