In his EXEGESIS written after his experiences of 2-3-74, PKD combines his mysticism with his anti-authoritarianism:

The idea that seized me twenty-seven years ago and never let go is this: Any society in which people meddle in other people's business is not a good society, and a state in which the government "knows more about you than you know about yourself," as it is expressed in FLOW MY TEARS, is a state that must be overthrown. It may be a theocracy, a fascist corporate state, or reactionary monopolistic capitalism or centralistic socialism -- that aspect does not matter. And I am saying not merely," It can happen here," meaning the United States, but rather, "It did happen here. I remember. I was one of the secret Christians who fought it and to at least some extent helped overthrow it.

The mystical apprehension that Dick refers to here and, generally, in many of his post-Pink Beam writings is that the common world we live in is in some way an illusion. The true reality is that we are still living in Christian times and are still under Roman rule. And Dick, as he said, was one of the secret Christians dedicated to the overthrow of the Roman empire. In the short excerpt from his EXEGESIS quoted immediately above he even says that he helped overthrow the empire in some small way. His novel FLOW MY TEARS is critical to Dick’s new world view after March 1974. Within the pages of the novel, hidden from the eyes of the Roman authorities, was embedded a secret cypher. Dick’s friend and fellow science fiction writer Tim Powers refers to this:

On p151 0f VALIS, Fat tells his friends "The two-word cypher signal KING FELIX" was sent out in Feb '74, and that "the United States Army cryptographers studied it, but couldn't discern who it was intended for or what it meant." Fat's friends ask him how he knows that, but he won't say; nor does he explain in what form it appeared.