Valis, just as Ubik, is camouflaged in the world, intertwined with everything we know. It is ancient but also here now.
Dick compares what he wrote (since his theophany) to Paul’s New Testament writing. God wanted something outside of himself to exist on its own, and he created us out of love. The only way to join with God is to return to the creator after withdrawing. This is what God truly desires. The great secret is that human sorrow will eventually push us to the reunion with God.
Valis is not God but a brain-like construct that arranges information for us as it “thinks.” He compares it to Christ becoming the world in literal transubstantiation.
In high school Dick loved Parsifal, Wagner’s opera about the quest for the holy grail. He always wished for the next logical step from the third act, and he found it in his 11-17-80 theophany. In Dick’s interpretation Parsifal equals 3-74, or the crucifixion, which leads to the ecstasy of love as sorrow is converted to joy. He calls it a sorrow-compassion-agapē-joy-God sequence.
Buddhism, Christianity and Brahmanism all lead to the same place “specifically to the perception of reality as one total sentient field” which is Valis / Brahman / the Cosmic Christ. From there the path leads to God. Dick says he has included all of this in VR / The Divine Invasion.