Please correct me if i`m wrong but isn`t hypnogogic imagery the only light when you close your eyes? When i was a kid i learned that if u press your eyeball a little (not too hard offcourse lol) you`ll get this trippy vision when u open your eyes again. Also if i roll my eyes far towards any direction the lights become more bright but it puts a little strain on my eyes... is this a healthy way to try getting more vivid images or should i just relax my eyes?