forgot to respond to Coelho...

sounds like you are describing some pretty similar instances. it has been awhile since i posted this and i have paid more attention to it. i have noticed two things.

1. i've experienced it and noticed an ever so slight openness or quick opening of my eyes even though i am on the sleep border

2. i've experienced it in much the way Coelho described his experience... more of a "knowing" so vivid it produces picture that is "explorable"