From the article in Salon about Dick’s turn to Christianity (famously of not just a vague Gnostic sort, but quite specifically Valentinianism):
These science-fiction devotees had more influence on the cultural explosion of the sixties than is usually acknowledged. Indeed, one of the secret histories of the era is the migration of some very idiosyncratic bohemian writers from the tiny world of science-fiction fanzines into the emerging rock press, where they exerted an outsize influence on the vibrant spunk of the scene. Paul Williams, the most important of these science-fiction rock geeks (and later the executor of Dick’s estate), passed on a copy of Three Stigmata to Timothy Leary, who in turn gave it to John Lennon, who briefly considered turning it into a film.
Rob Orlando wrote a reflection on Blade Runner on the death of Rutger Hauer who played Roy Batty, the replicant who famously asked his creator for more life.
Dick is one of several sci-fi authors to get a mention in this call for papers:
https://relcfp.tumblr.com/post/186402918116/cfp-esotericism-occultism-swpaca-2020
See too some of my past posts on this topic…