“But nevertheless something shines in the dark ahead that is alive and makes no sound. We saw it once before, but that was a long time ago, or maybe our first ancestors did. Or we did as small children. It spoke to us and directed and educated us then; now perhaps it does so again. It sought us out in the climax of peril. There was no way we could find it; we had to wait for it to come to us.

Its sense of timing is perfect. But most important it knows everything. It can make no mistakes. It must be back for a reason.”

— Phillip K. Dick, The exegesis of Phillip K. Dick,
Houghton Mifflin Harcourt, 2011. p.21.