This message picks up from the prior comment thread:
It seems to me we’re not that far off, so I’ll spell out what I think we agree on and where I think we differ.
Little Phil Dick (LPD) was abused by his mom both physically and psychologically and this left him with a feeling he had no essential value except insofar as he could realize the ability his mother admired, but failed at herself. In LPD’s case, this meant becoming a writer. The career and personal life LPD built reflected this unstable foundation. Though he was prodigiously productive, his productivity was increasingly fueled by drugs, inconsistent in quality and barely successful enough to support him. His relationships followed a similar course. Though he had grown into PKD, inside he was still LPD, unconsciously seeking to satisfy a a fundamentally dysfunctional emotional script which held out the possibility of basic self-acceptance as a reward for accomplishment. Eventually this script grew so exaggerated (to Biblical proportions) that in order to satisfy it, PKD drove himself to a psychotic episode and in the ultimate vain attempt at self-worth, came to fashion himself as a prophet, though he agonized over this compensatory identification for the rest of his life.
Do we agree to that point?
I’m going to suppose that we do and move on to the matter in disagreement, which I’d describe as the nature of PKD’s agony. What stands out for me as distinct from what we might call ‘mere oscillation’ between hyper-inflation and complete deflation is the degree of objectivity and humor that PKD brought to consideration of the two states.
When I write that you seem to me fixated on the ‘analytic phase’ (and by ‘fixated’ i mean mistaking that aspect for the whole) I mean that you notice the fact of the analytic agony but not the degree to which PKD was actually able to reconcile the either/or split. I take this impression from your use of two quotes from VALIS, as if those prove PKD was stuck in either/or thinking, when the book as a whole testifies to how adept and flexible he became – through his obvious struggles – at bringing those opposites into relationship.
I don’t think Phil fully resolved the split, or in the language of taoist alchemy, transformed false yin and false yang (which are antithetical) into true yin and true yang (which are complementary). But as i see it, Phil’s art testifies to an at least intellectual motion along that path. As Bi11 commented:
This isn’t just both sides of AN issue, but both sides of something existentially central.

Finally, in searching for an image of PKD for this post I came across this interview with Tessa that you might find interesting. Here’s a bit on Phil’s 3-2-7 experience from Tessa’s perspective:
Q: As a skeptic I have a really hard time believing that 2-3-74 was ‘real’, but I know it was real to Philip – and what’s more I do ‘feel’ a lot of truth in the experience. What can you tell me about those experiences that might help me wrap my brain around all of this?
A: The experience of 3/2/74 (it was March 2, not Feb. 3; the confusion arose from the difference between European and American date notations). was very real. The question is, what was it? Was Phil suffering minor strokes? Hallucinating due to drugs or mental illness? Or seeing reality?
I submit that the evidence points toward something very real. There was the night when our radio would not stop playing, even when it was unplugged. There was the Xerox letter, which I held in my hands and read. There were strange cars stopping in the alley behind our apartment at all hours of the day and night. There was the yellow van that parked out front. Two men in workmen’s coveralls got out of the van and carried about a dozen cardboard boxes into the vacant apartment next door.
One strong possibility is that the electronic equipment in the vacant apartment next door was affecting both our radio and Phil’s mind. I know that I also had some very strange dreams during that time.
Phil wrote that he had wisdom teeth extracted, which is ridiculous. He no longer had any wisdom teeth. He had two broken molars. He also mangled his description of our son’s hernia when he wrote about it, but he got it right when he jumped up from one of his frequent naps and told me about it. Something very strange was going on, and although the general anaesthesia for the oral surgery might have had some effect on Phil’s mind, there was much more to it.