99.99% of the time, it’s just black. Seeing things like you’re describing sounds like a super power.

The 0.01% of the time, I have seen blue lights. Without trying to look around too much, it’s something like this:

https://m.youtube.com/watch?v=-OzQ0zAtFL0

This has only happened a handful of times, maybe 5, definitely less than 10. I was in my mid-30s the first time it happened, at some house learning transcendental meditation. I opened my eyes for a second, thinking they were shining some lights to make it seem like something was happening. Sadly, I was never able to repeat this through meditation, but it has happened a few times as I try and fall asleep. I wish I could trigger it on demand. It’s super cool when it happens.

Not GP, but fully aphant. No I can't do that. When I close my eyes, I see the inner of my eye lids (red / brownish). That's it. Nothing comes up, even if I try to remember the face of my mother.

Nothing, no