I read this book back in the late 80's when I was in the military, stationed overseas. Back then I liked it, thought it was weird, but quite frankly most of it went right over my head. This week I read it again and I was overwhelmed by the depth of Phil Dick's writing. His tie-ins with gnosticism and his investigation into what spirituality means, who God may or may not be, and what it means to be insane are spellbinding. This goes up into my all-time top recommendations list.