The Depth of an Eye

What exactly is a person looking at when he/she looks into someone's eyes? Some say the eyes are the windows to the soul. Well, they seem like they're a passage somewhere. As I look around I see books, a TV, lights, walls and a ceiling. But my eyes are not seeing, they are relaying a message elsewhere. What would the eyes be without the brain, the interpreter? It's true that without eyes, one could not see, but without a brain a person could not see either. Which leads me to my next question. Where am I? I am certainly not my eyes because if they were closed or if I lost them, I would still exist. They seem to be a tool to help me through life. The same could be said for all of my body parts. I often stop to think how little control I have over my body. I mean, if I had to digest something all by myself (with my conscience mind), I wouldn't know where to start. Or, ask me how to reproduce a cell. I don't know! But my body does it all the time. I go through my life thinking about what TV show to watch or what song to listen to and my body is doing all this work to keep me alive. So, where am I? Where do I start and my body ends? Do I take up any space at all? Am I my brain? My heart? When I use the key board, and wonder how the computer gets the signal from the key to the letter on the screen, why don't I wonder how my body gets the signal from my brain to my fingers? Well, I just wanted to say thank you, Body, for taking care of me for so long. I know you can see what I'm typing.