Suppose you learned that Jesus Christ is the Light, and that in Him is no darkness. Suppose you wrapped your mind around that. It would bring sunshine into the darkest corners of your world.
John quoted Jesus as saying, “I am the light of the world . . . I have come as a light into the world, that whoever believes in Me should not abide in darkness” (John 9:5, 12:46). John later told us to walk in the light (1 John 1:7). That knowledge in our minds brings hope and joy to our souls.