“Two psyches, two signals. Set and ground which the twin psyches blend together: one sees set, the other sees ground. so it is essential that they do remain “di” or twain: if they merged into one psyche they would no longer percieve/recieve two differing signals, no longer be able to do a set-ground feature extraction. Twin push-pull psyches working in tandem. more than set-ground: two worlds (spatiotemporal?) based on a common essence; and the common essence can be percieved as archetypal constants (common to both signals or worlds); what i call “archetypes” or “eide” are those elements common to both signals, percieved by both psyches: what overlaps, is present in both (worlds) and to both psyches.”

philip k dick