Vision as a metaphor. Why do we call our eyes as the windows of our soul? Why do we talk about the way we "see the world"? Why do we say "I see", to communicate something that we understood? What do we understand? What are our relationships between our vision, our look, and our way of being? Vision is not just a physical process that implies sharpness. It is a multidimensional function that affects and is affected by our emotional and mental state, and this is linked to our personality.