Light is good, but if you will not use it properly, it won't give its best!

There is Light at the end of the darkness, for in the beginning, God created light.  And the light shines in darkness, and the darkness comprehend it not.  Jesus was the True Light, which lighted every man that comes into the world.  He was in the world, and the world was made by Him, and the world knew Him not.  He came into His own, and His own received Him not.

https://www.youtube.com/watch?v=N9kvevDbEw8&index=12&list=RDYuzLoN6COTY The Light of the World