What is light? A wave, a ray, a chance to have vision. A way to see outside of darkness. A wonderful dimension of our lives. On a physical level, it allows us to see what is around us-- the soft smile of a baby, the flowers blooming in spring, the face of your husband. Imagine if we didn't have the gift of light and vision. The world would be a very dark place (not to mention, we would all be dead without the light from the sun!) Since we usually associate light with the sun, the term light often also causes me to think about warmth. We might think of the warm sun as winter melts away (or here in California, never comes) or the salt and sand of the ocean. These are all little things that I think of when I hear the word light.
On a spiritual level, light represents godliness. EnLIGHTenment is what separates us from the darkness, from sin. It is what separates us from the rest of God's creation by allowing us to reason. The light from God's word gives us a moral compass to be able to see what is right from wrong. It gives us vision of what God wants and hopefully lights the path we walk. Without the light from God's word, the world would be a very dark place. Without the light from God's word, we would all be stuck in our sins, without hope. So when I think of light, ultimately I think of HOPE. A vision for the future that is full of the light from God.