The Celestial Fields were split into 4 layers. The density of Qi and profound Laws naturally segregated it in part but there were physical separations as well.
The 1st layer was the foundational land that connected directly to the Heaven Realm lands and thus the mortal realms as well. It was the place up the Shard Tier Immortals could rule for millions of years. They were the peak of that layer and even Crystal Tiers could not exert much power without incurring harsh costs.
The 2nd layer was the natural home of the Crystal Tier Immortals but it was essentially the largest floating landmass that rose up with the level of profound natural treasures. It was the first true layer of mythical beasts truly appearing in mass numbers.
It was common for Immortals to be as common as blades of grass due to how much easier it was to reach the Sliver Tier alone.
