First rule of philosophy is definition, so what is the definition of the soul that you believe is a delusion?

I think a soul is a congeries of deep mysterious drives, instincts, feelings and it's crowned by rationality, and in the mix it collects experiences and the main executive branch of the soul is a active, organizing, creative agent that knits experience together, and makes sense of it all.

Is it indestructible? Probably not, but if there is a god then maybe there is an afterlife that would allow it to live on in a greater harmony. Speaking of harmony, I'm grabbing one more beer.