Many people have the experience of what could be called a soul, even if what they are experiencing is not some hidden spiritual plane of the universe. Perhaps "soul" could be better defined as something inherent to one's experience, rather than some outside entity that grants life to a vessel.

I believe I addressed the question of materialism vs dualism in my original comment?

Did you edit the comment? I don't recall seeing the footnote before. In any case it was a rhetorical question to understand your reasoning, as I personally don't take a stance on whether a soul exists or not.

I did a few days ago, yes. But yeah, fair point!