The Three Stigmata of Palmer Eldritch
by Philip K. Dick
Like most of Dick's writings, The Three Stigmata of Palmer Eldritch is a mental labyrinth, leaving the reader (and some of the characters) questioning who or what Eldritch really is and what he wants. Characters take hallucinogenic drugs and periodically plunge into realms where the lines between fantasy and reality blur. This is all par for the course with Dick, but Palmer Eldritch also possesses a beating heart under the mental gymnastics: protagonist Barney Mayerson is caught in a spiritual malaise and must find a reason to keep living in a universe where Earth and the other human outposts are largely uninhabitable. Mayerson must not only not preserve humanity, but determine that it is even worth saving.