I never use to believe in ghosts or the supernatural but something happened late in 2011 which I've always wondered about and that which changed my perspective completely.
It was during the day about mid-afternoon and it was sunny outside. I was working from my desk and all of a sudden a very dominant black shadow appeared to come through the right wall and float across the room about 3 meters in front from me. It slowly moved about halfway across the room which would have taken about 4 seconds (it is a rather big room) and then disappeared. I don't remember if it just suddenly disappeared or slowly vanished, but I think I remember it almost dispersed like it was smoke.
It was slightly transparent (I could see through it marginally) and it was almost shaped like a cloak but in a horizontal position. Reasoning with all avenues, I don't see how it could have been a shadow from something and it went for too long to possibly be a flicker of my eye. It was a very dominant figure.
I had always imagined if I saw something like that, it would scare the absolutely crap out of me, but after the initial feeling of shock, surprisingly it left me with a very good and calm feeling.
Reason I'm bringing it up now is I forgot mostly about it until I was taking to a friend who thought he had once seen something similar. Although not experiencing a calming sensation, he felt like it was something evil.
Does anyone know what this could have been or might have represented? Any comments would be greatly appreciated.