Dick traces the beginning of his 3-74 experience to a “taco stand” trip into “Mexico,” which was an eight-hour vision of several weeks in 1974 that he had while in California in 1971. That’s when Thomas entered his world, crossed the next three years and took him over in 3-74. This was a necessary infusion of psychic energy from a time when Dick was stronger to a time in 3-74 when he was weak.
He recognizes his life in Orange County as the replacement reality, but he tries to imagine what was there before. He wonders if the changes reach all the way to the White House. Perhaps in the other reality Nixon remained in power. The world of Flow My Tears, which also includes the Nixon tyranny, was overthrown.
Just before falling asleep he has a hypnagogic vision and is aware that he is not supposed to understand 3-74. Whoever healed him is also scrambling his mind, but now he knows he can’t figure it out and never will.
He ties his beliefs to Communism and theoretical Marxism (he calls it an anti-establishment Christianity anti-theist view). The key is millennialism, which is a belief that a paradise will be established on Earth before a final judgment. Thomas is a Marxist revolutionary, and capitalism is the BIP that enslaves us. Real Christians are communists, a secret hidden from the world.
He envisions the being beyond creation as a woman. She is his sister. Does he exist in her mind or does she exist in his? Which of them is alive? This dialectic is the yin and yang of Tao which he explored in Ubik.
Our world is the world Mr. Tagomi experiences when he reads a page from a book in The Man in the High Castle. It’s a loop where the smallest thing (a single page inside a work of fiction) becomes the macro. The whole is contained in the part.
He realizes he is dead and doesn’t know it just like the characters in Ubik. Or maybe he’s alive and they are dead. He calls this a breakthrough into pluriform model theory. Truth oscillates, negating itself and then negating itself again, back and forth in a loop. He claims these riddles, where he ponders whether he is alive or dead, show how happy and fulfilled he is.