Floaters

I'm 99% certain that the blobs of light and shadow you're seeing as you awaken are eye floaters, also known as floaties. This assumes that your latest description of them here is somewhat accurate. Be careful when you choose your wording, especially when you're talking about things that aren't obvious in most people's minds. You used the word "figures" to describe both human shapes and undefined blobs.

As far as the glowing human figure, that sounds very interesting. If I were there, I would have had to go over for a closer look. From that distance, it could have been anything. It could have even been something very interesting indeed.