June 1981
Dick has a dream about his ex-wife Nancy whose mind (in the dream) has been infiltrated by the psyche of another man. She has taken some medication with the cryptic name “Ditheon.” He digs into the possible etymology of that word and decides it refers to two gods.
Outside dreamland Dick receives a letter from Russ (I assume his agent Russell Galen?) about Transmigration. Russ has different ideas about Christ’s return in the novel, and Dick ties Russ’s interpretation to his dream about Nancy to conclude two minds join together to form Christ. He attaches great significance to this dream and calls it a new divine revelation. Christ’s return could come as a fusion with someone’s consciousness and not as the reappearance of a physical man.
These two psyches each receive a different set of signals and thus form a new kind of mind. The meta-abstraction either creates the new psyche or comes from the new psyche. He’s not sure which. This two-souled person is now godlike.
He still isn’t sure what he saw when he saw Valis. He calls that the greatest mystery, and it could take centuries to figure out. He suspects Valis planted the dream in his mind, and this understanding he’s come to about these dual minds is the next step in human evolution.