Dick yearns for Zebra to contact him again. He returns to the night of his epic drug bender and decides Erasmus and Dionysus and Zebra are one and the same. Zebra is the rightful king of our world. Maybe if Dick’s experience did happen to others they kept it a secret.
He reads an article in Time magazine about a book by psychologist Julian Jaynes which suggests that prior to 10,000 B.C. humans didn’t possess a consciousness but instead existed in a sort of schizophrenic state led by voices only they heard. Eventually humans evolved from this bicameral brain (left side for speech, right side for these voices) to the consciousness we know today.
Dick thinks Christ’s unachieved goal on Earth was to help restore that bicamerality. He believes in 3-74 he became temporarily bicameral, and if the gods communicated from our right brain then they are still there subconsciously guiding us.
He imagines the mind as a computer that can retrieve any information (even that of long dead people?) if it’s given the correct signal.