What exactly is "personality"?
Personality is the result of chemical processes in the brain that act upon our shared experiences, interactions with the natural world, social and familial interactions, etc.
Your explanation of the concept of a “soul” is insufficient. It's only sufficient for those who have already decided there must be a “soul”. You believe it's okay to assume as decided, the issue of some sort of continuation of the consciousness after death or some other undefined "consciousness" that you hope to connect with one or more gawds.
I have no explanation for "spirits" or the "soul" because the soul remains undemonstrated. I have no properties and characteristics for that which does not exist. I
do have a comment about personality, and where that comes from. The sense of self is a higher brain function and it's seen in comparably lesser degrees in lesser animals (i.e., humans are not the only creatures with a sense of "self"). This in and of itself is enough to prove that "selfhood" is a natural phenomenon of higher brain functions. Either that, or your gods have made monkeys and men with a soul each, and that means humans are the
especial creation of god. Language, nurturing, survival, industry, and even environmental control all can be attributed to animals lesser on the sentience strat than man, which is a great case for man being of and a part of the natural world-- no gods needed.
Personality is a phenomenon of the brain. Remove sections of the brain and the "self" changes as well. Apparently your eternal soul is at the mercy of a few pounds of grey jelly, because the soul cannot override the impact to the brain and the change in personality that attends that impact. The soul must be fairly weak.
This is a perfectly valid explanation for emotions, and it doesn't require the mumbo-jumbo of gods to explain it.
Non-material concepts are not fully non-material. You need a brain to substantiate them. Damage or impact to the brain directly affects the development and delivery of the concepts. You are simply assuming a spiritual nature for these things, and not submitting any case to support it. I am submitting they are the effects of the brain along with neurons and chemicals within the brain, and I can demonstrate how they can be manipulated by physical impact.
By way of example, I can
1. end all thought by killing that brain
2. create an emotion by chemical inducement of that brain
3. limit the thought and emotion of the brain by removing sections of it.
All the poetry about feelings and spirit and so on -- reside only in the brain. Remove it, and away it all goes. All of it. Even belief in gawds.
Now would be the appropriate time to demonstrate the asserted "soul", and the unique gawds who supplied the spiritual source, which religionists assert is the actual reason emotions exist.
You can do that, right?