Ordinary "Yin God" Realm Mages, after losing their physical bodies, usually choose between seizing another body or retaining all their memories to enter the Ghost Path to cultivate.
However, both options have prerequisites.
The subject for a body seizure must be a mortal whose Life Chart is compatible, and having cultivation or an incompatible Life Chart would significantly increase the failure rate.
Entering the Ghost Path requires one's "Yin Morality" to exceed their "Debt," otherwise divine retribution would be immediate, with death only the beginning of the tragedy.
Xue Donglou's "Three Corpses Worm Divine Skill" was a hundred times more convenient than that of others.
He could seize the body of any being with a "Three Corpses Worm God," consuming the host's fate and life span, and after achieving mastery, his survivability far exceeded that of ordinary Magicians.
But this "Earth Department Taoism" was not without side effects.