I experienced this about 2 weeks ago, but have just come to realise that it was very significant.
I was laying in bed, very relaxed and focused on my vision behind my closed eyelids. I saw what looked like one of those old film/projectors they used to use, which is weird because I don't remember ever seeing one in real life. The image was moving and it looked like clouds passing by.
Fast forward to last night, I'm reading Robert Bruce's Astral Dynamics and there is a section that talks about something called The Vision Screen.
Can someone here shed some light on this experience I have had?
I posted my experience on reddit last night and a few people have also seen a similar thing.