Instead of Scientology

Steve of Hog on Ice recommended starting a religion based on the works of better SF writers than L. Ron Hubbard:

Tom [Cruise] worships L. Ron Hubbard, a bad science fiction writer. Whether he realizes it or not. Why not have a religion that worships a GOOD science fiction writer? I'm thinking of Philip K. Dick. We'll kick their ass.

I can imagine other SF-based religions. Their holy prayers might include:

• Asimov said it, I believe it, and that settles it!

• Now bow down three times in the direction of Cape Canaveral and say “THERE IS NO GOD BUT TECHNOLOGY AND ROBERT HEINLEIN IS ITS PROPHET!”

• We shall pray for the coming of the Singularity and though it tarry we shall remain faithful.

By the way, my father read the original article on Dianetics in Astounding Science Fiction and he thought it was intended to be a parody of psychoanalysis. (This was shortly after Asimov wrote his thiotimoline parodies of chemistry.)

Addendum: Orac and commenters have some additional suggestions. Meanwhile, I just remembered Star Maker by Olaf Stapledon, the sf novel most closely resembling a religious text.