The only thing I know to exist that seems at all immaterial to me are feelings, or internal sensations. I see a need for a soul only when someone takes a god as a presupposition.
If you’re a solipsist there’s logically no reason to talk to you about this.
Not all world views are equal, and when people have a god to trivially justify whatever they want to believe, then they can commit cruel acts in the name of good morality. That is the problem I see with using a god as an assumption: logically, anything follows trivially, because an omniscient, omnipotent god can do whatever it wants.
In first order logic, a false premises is one in which anything follows, any conclusion is true. It seems the best, most general definition of an external god I can think of is a false logical premise.
