@RingSystem There is a name for it that I believe eschews mystical undertones, but I cannot remember it. I do not believe it to be anything spiritual, as I've noticed that there's some mental map of your surroundings as you sleep that seems to function as a "between" world between dreams and reality where you can be if you think you're awake but not fully noticing how your body is resting in a different positions and you're seeing things with your eyes closed. This usually serves as a very nice way to simulate waking from a bad dream without actually sacrificing your dream state, and there may be more layers to go through.