This way lies madness ... Recommended to me on multiple occasions by readers of various stripes, most recently by a compatriot of my manic early adolescent sci-fi/horror devouring days at a class reunion, this book takes every cosmic, New Age conspiracy theory you could imagine and advances a unified theory to rule them all. Think The Matrix crossed with Chariots of the Gods, Mr Robot, Fight Club, The Men Who Stare at Goats, Carlos Castaneda, Paulo Coelho, Grant Morrison, What the Bleep Do We Know, The Man Who Saw Tomorrow, Prometheus, and 2001. Stir until thick. Of course, not all those things were around when it was written, which suggests something of a long shadow. If I didn't know it came from the drug-addled, paranoid, psychotic, mind of late career Dick, I might have thought it was intended as a deep dark parody of 70s New Age thought and madness. If it was intended as such, than damned if PKD didn't get clear at the end, as the prose is more robust and self-reflexive than his earlier works.