I've been thinking a lot about soul cultivation as a concept, and the general structure of the soul, and doing a bit of writing on the topic. I feel like this topic is surprisingly under-discussed and under-explored relative to how impactful it is. By soul I mean "the part of you that is an observer", in case this isn't clear. I think a lot of discourse gets caught up with metaphysical speculation instead of focusing…
This is a nice notion, but it's not how the existing literature (going back very long) generally uses the term "soul." Conventionally speaking the term soul is theological and has ties to modes of spiritual salvation as it is considered a substance that persists beyond human mortality. What you're describing seems more like the term "self" or "ego" or "conscious awareness" as those terms are used in philosophy. You're welcome to create your own definitions, but if they trample over the prior art of the terms in literature that is hundreds if not thousands of years old then that's going to almost certainly lead to the confusion you say you're noticing among people.
for what it's worth my drawing of "the part of me that is the observer" would look like some subset of the brain.