John 8:12: When Jesus spoke again to the people, he said, "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."
Webster says that light means something that makes vision possible. I couldn't describe Jesus any better than that. He is the One thing that makes vision possible. You never realize how blind you are until you finally come to know Him. You never realize all the things you are missing that you couldn't see before without Him. You never realize how bad your eyesight is until you go to the best Optometrist in the world! Do you need vision? Go see the Great Light of the World!