Dick writes Claudia this long letter the morning after an epic drug bender. He relates questions his wife Tessa had asked him while he was ‘ripped.’She wanted to know what entity took him over during his 2-3-74 experience and he decided it was the Greek scholar Erasmus.
He tells Claudia we spend our whole lives seeing time in its secondary axis instead of the real axis which is orthogonal. He toys with the idea that orthogonal time is cyclical and not retrograde like he previously thought. Our linear time is probably warped (which makes sense based on what Einstein told us about spacetime) and so time will eventually loop back around just like an object in orbit around a star.
Time doesn’t really move but rather we move along time, from signal to signal, based on the plan of the Logos.