The body is made of spirits each organs posses at least one,after you evolve your body changes so much you get new ones,i had black centipedes fleeing my organs when i figured some stuff out, this also means you won't get affected by old addictions for example the desire to partake in that has left your body, addictions are pretty cool they're just a signal telling you to internalize or burn some stuff out.
Genetic disease also seem to involve bad spirits,they get attached to your whole blood line they're very hard to get rid off, i think the only way is to cut yourself off from your ancestors (blood anon talked about this), i am not sure of the ramifications though, or to cut yourself from humanity so becoming an undead is how i understand it.
Also did anyone left pic related in a swamp near a tree? i don't think this is one of mine.
