Think of a world without light. How could we survive? Think off all of the things light does. It helps plants grow, gives us nutrients, helps us see, comforts us (mainly because we're all scared of the dark), gives warmth, and so many other things. The uses for light are almost innumerable. Of all the differences in the uses of light, there is one thing that remains constant.
The Apostle John explains this constant characteristic of light in John 1:5, which reads, "And the light shineth in darkness; and the darkness comprehended it not." The imagery that this scripture portrays is so awesome. Wherever there is light, darkness cannot be. In reality, darkness is merely just lack of light. The minute light enters the picture, darkness is instantly vanquished. No matter how hard the darkness tries to stay in the room, the light will run it away.
As we keep the Light of Christ in our hearts and in our minds, there will be no room for darkness or evil. That is the best cure to feeling dull. Brighten the light inside and cast out the darkness. The more we fuel the light, the stronger it will be. The stronger it is, the harder it will be for Satan to try to put out our light. May we keep the Light of Christ burning brightly in our hearts.