Illomi Wiki portals:
There are three major faiths or religions competing in Illte, Polytheism, Atheism, and the Zhonyo's Veneration of the dead. In addition to the facts about these faiths, some myths about the Negan Death Cult and Zhonyo religious practices may also appear.
Can your soul be shared with others? Does the soul live on after death? Is the soul just the sum of your thoughts? The answers you'll get depends on what faith the person you ask believes in.
The Negan Death Cult and the Zhonyo Veneration are opposite in that in the former faith, death was best experienced if met during intense pain, while in the latter, death has to be a painless transition.