Science fiction's answer to "Lord of the Rings" - but with artifacts of old religious themes woven into the story, which Tolkien was smart enough to omit. Dune's author, Frank Herbert, used a number of historical threads to create his vision of human destiny - which, 10,000 years from now has not advanced one bit when it comes to getting along. To me, that's the most difficult aspect of Dune to accept because it's such a dark and despairing vision - even though it's so far true in our evolution as a human species... But Herbert didn't consider the arc of religious beliefs, with fewer and fewer adherents every decade as old superstitions give way to rational thinking and the advance of science: we have to hope that such superstitions - and the violence that attends them - will have disappeared from human experience in that distant future. Evidently, Herbert didn't agree.