"The average American suffers from two delusions, one that God is dead and the other is that there is a difference between brands of cigarettes."
Philip K Dick. Wrote science fiction. Took drugs. Found god. Big deal.
Ahead of Richard Linklater's take on A Scanner Darkly, BBC Radio 4 had a half-hour (or thereabouts) broadcast on PKD, entitled Confessions of a Crap Artist and exploring the writer's relationship with god.