There is obviously a link there but herbet went out of his way to keep some aspects of the story grounded. There was little effort in that reguard. It sounds more like what you are talking about than dune. He does have stuff like the azarch that veers out into pure metaphor.

You should check out prophet as well. It was an old gritty 90s comic that got rebooted into mythical science fantasy.

What else is on the list? Greg egan? Roger Zelazny?