As I said, probably unintentional, soetimes things can be read in different ways, that's all

I think it's very curious too, I've never heard of this kind of thing before. It's funny how people see stuff in different ways, which is what I find so interesting about these discussions. I went to a 'dream interpretation' workshop and it was really interesting how different people dream in different ways. One person in her dreams always flies out of the window and travels around in her own body, looking down and can guide herself to different places. Another guy only has dreams involving 2 things - either a picture of a map (always out of focus) or faces of people he's never met. All these things come to him as pictures, he's never in the dream itself. My friend has predictive dreams. She has dreamed big world events before they happen. I usually dream about climbing along a narrow ledge and feeling as if I'm going to fall. Either that, or I'm somewhere where I suddenly relise I'm only in my underwear LOL!
I'm not saying that this shadow was a dream - just that it's interesting how people see/sense things in different ways.