I might have been the one who made a post about Photo Reading some time ago. I was practicing the method for some while. It's a very subtle thing, and honestly probably don't work for a lot of people, a lot of it is a faith concept. But it's backed with somewhat convincing references to neurological association and subconscious whatnot. But it's basically a kind of mixing in between subconscious and conscious processing of written or typed text. It's related to dreaming in the sense that it feeds info into the mind through different channels that may indeed influence dreams in a profound way.