Moonlight
Jesus tells us in John 8:12 "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life." Like the sun (in a small way), Jesus lights our world. Like the moon (in a small way), we should reflect that Light into the dark world. When a full moon rises over a dark night, we can see very well. Not as well as in the daytime, mind you, but still pretty well. Is that the light we shine? A clear bright reflection of the perfect Light of the world cast throughout the darkness helping others see? This is a dark world. Most of the time it feels like we are walking around in the shadows of night. But if we are willing to be close to Jesus constantly, we can reflect such a pure Light that, not only can we see better, others can see better, too.