In this chapter of, The Brain Rules, Medina speaks about Vision. Vision is a very important sense in life, there are some that do not have vision but rely on other senses. All throughout my life, i have had 20/20 in eye vision. Vision contributes to the way you understand things. When you are being taught something, it is proven that you will understand things better if you use your vision rather then hear it. Although, in the chapter it speaks about how our vision has damaged our other senses, due to the fact that our perception changes when we see something.