FYI, this months issue of New Dawn Magazine contains a very interesting article about Philip K. Dick written by Anthony Peake.
http://www.newdawnmagazine.com/latest-issue/new-dawn-139-july-august-2013This may not be new info to some but it was to me - apparently Philip K. Dick heard a guiding voice throughout his life. A voice that he didn't believe was from his own consciousness, but sort of a future incarnation. The voice told him, for example, about some very specific details regarding an unknown ailment that his infant son had, which he was able to act on in time to save his life. The voice was also prophetic in many instances and seemed to fuel his fascination for time travel.