This Tribulation is fraught with things beyond explanation. Since ancient times, any cultivator who failed the profound tribulations of the upper three ranks would invariably form an irreversible barrier between their physical body and their divine soul.
The physical body would collapse beyond repair, and the divine soul would scatter beyond consolidation.
This had nothing to do with one's level of cultivation; it was a trial of body and soul, entirely unavoidable.
Chapter 1200