The Bible has much to say about light, especially spiritual light which is, primarily, the understanding and practice of God’s Truth. The archangel who became Satan was supposed to be a light-bringer, but after rebelling against God, he is devoted to bringing counterfeit light which are lies. Since Christ went back to heaven, God’s people are to be “the light of the world.” This subject is better understood by fascinating analogies with the sun, moon, and stars.