Comment by petrocrat

> By soul I mean "the part of you that is an observer"

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.