Vision is an interesting thing. It is the sense that allows our brains to take waves of light reflecting off of everything and interpret them into a distinct perception of our world. In High School Psychology Class, I once learned that vision is the most overpowering of the five senses. It has the ability to hold our attention and distract us from any sound, smell, taste, or feeling. For example, you are reading a book and your mom has been trying to get your attention for the past five minutes, but you have no idea what she said the whole time you were distracted by your book. The sound of her voice certainly entered into your ears, but since your eyes and mind were so busy, your brain simply chose to ignore the sound signals. They might as well not have existed.
Spiritual vision is a lot like physical vision. Without any sort of spiritual vision, we become spiritually blind. We don't have any idea who we are, where we came from, or where we are going. We simply exist, wandering around in the metaphoric darkness. It is very difficult to get anywhere in life if you can't see where you are going. This is why gaining knowledge about the gospel as well as a personal testimony is so important. When we have a firm vision of what we can accomplish, we can then exercise faith and begin moving in that direction. Like physical vision, we will not easily be distracted when we have an intese focus on our spiritual goal.