Earlier quoted context omitted.
But why call them spiritual experiences when hallucinations will do even better?
"Do people have ideas or do ideas have people?" might have something to do with the phenomenon of different humans preferring different labels for the same thing.
Dostoevsky made observations like this, too.
"It was not you who ate the idea, but the idea that ate you"
"Men need to bow down to something; whether another man or an idea.”
I think Ernest Becker explored similar ideas in The Denial of Death, though through a different context.