I tried the open-eyes WILD technique last night and, indeed, got to a “hypnaogogic” point. I wasn’t literally seeing images, but I was getting what some call “memory impressions” with my eyes open. This has never happened to me before, and was very interesting. Also, as I slipped in and out of consciousness, the memory impressions extended into dream-like scenes while I still had my eyes open.
It’s difficult to describe memory impressions. You see them without seeing them. You can say exactly what you experienced, but you did not see it with your eyes. You see memory impressions with your mind. And yet it is different altogether from visualization or imagination; it’s much, much stronger.
I’m going to keep experimenting with this.