Philip K. Dick was a strange fellow
And by “strange”, I mean “clinically insane”. If you have any doubts, just look at his 1978 essay. Quoth PKD:
My theory is this: In some certain important sense, time is not real. Or perhaps it is real, but not as we experience it to be or imagine it to be. I had the acute, overwhelming certitude (and still have) that despite all the change we see, a specific permanent landscape underlies the world of change: and that this invisible underlying landscape is that of the Bible; it, specifically, is the period immediately following the death and resurrection of Christ; it is, in other words, the time period of the Book of Acts.
Odd how the most talented are often the most crazy…