I've enjoyed many of Philip K. Dick's books - he was a writer of ideas (Yahweh bless his soul!). However, I must part company with him on this one. Unless you have already been "brained" by early relentless inductrination in Judaism, Christianity or Islam - the three great monotheistic patriarchal miasmas, you'll feel terribly indegested if you try to swallow this book. I read about half of it and got enough of the Torah nonsense, etc. to decide to skim the rest of it, after which I quickly depostited it in the garbage.Religion and science fiction make for a truly putrid concoction. If for no other reason, I read science fiction to recapture a sense of the unimaginable endless complexity and wonder of the world. The resurrection of stale banal ideas from organized religion truly poison my drink!