What does it do?

I often get very enthusiastic reactions to my photography...and I wonder...  because it seems to come so naturally to me.  What is it.  I mean everyone has a camera.  What do I "see" that they don't  see.  Anyone can do this...its not like Algebra or drawing a picture with my hands.  I'm using technology to create a vision.  I'm constantly observing things though. I look at everything as a potential composition.  I look for details, the little things.   What is it that makes an artist... I don't quite get it. I know I can take a shot that I feel is blah and make something worth looking at....  but, I don't quite get "photography" its still such a novelty for me... I love the feedback I get, it feeds my ego....  but I don't get it...  anyone could or can do it, yet the more photography I look at the more I realize that not everyone can do quite what I do...  perhaps that is why it is art. I always felt photography was more of a science and you just needed equipment to be a photographer, nothing special...  but, it is special isn't it.   If its your passion.