My Corpus
By this word, I mean the layered body and soul:
1. The most indestructible part of the soul. An amesha-spenta that would survive even the Big Bang, the awakening of Azathoth, and similar events—everything.
2. The isekai part of the soul that persists through all dreams and reincarnations, a certain perspective and behavior that develops for the current multi-meta-verse.
3. The slime, the healthy part of the psyche in this world and dream worlds close enough to remember or, in theory, reach out and connect perception with this, the "real" world.
4. The specific knowledge and skills we use. I can't use magic here, but it works in dreams. Also, some things from here are meaningless in dreams.
5. Connections and things. Friends, relatives, property, familiar places, rental housing, and so on.
6. The known, stable world as a whole. That you can plan a trip to Paris knowing it's unlikely to vanish tomorrow in a nuclear holocaust.
7. Some specific local things somewhere far away
This is all my corpus. I don't quite believe it, but I like the model.