The Primordial Undying Realm was shaped in a circular formation.
8 Trial Worlds sat in the 4 cardinal and 4 ordinal directions surrounding the main realm where the Primordial Undying Tree stood. Anchoring these 8 small realms to the main realm were extremely thick chains of mana.
If one looked at the order of the trials, one would notice that it followed this pattern. The void in which the Trial of Self was conducted was within that mana anchor, which was also used to transport the geniuses to the main realm.
It was a truly efficient system.
Within all 8 of these Trial Worlds, similar scenes were taking place.
The Nether Spirit Tribe elders that Ruyue and Lunaria had faced previously sat in a circle around an ancient formation that stood in the deepest ruins of the tribal land.
The Flame Tyrant Clan, a clan of giant beings made entirely of molten rock who inhabited another Trial World stood in a strange pattern around an active volcano.