In an old post, I mentioned that "God is light" makes extra sense because Einstein showed that anything traveling at the speed of light would be all over the universe at the same time and God is just that! Then we have Jesus proclaiming that he is the light. Now I see even more analogies between light and God.
Light makes it possible to see our path as we walk; Jesus lights up our spiritual path as we walk with him. Light exposes the dark areas and shows the dirt; Jesus exposes what's hidden in the soul and reveals our sins. Darkness vanishes whenever there is light ~ true both physically and spiritually. Light is colorless; God is totally pure. Light itself is invisible and its presence is known by the objects it lights up; God is also invisible and his presence is made known by the beauty of nature, the love shown by his people, the holiness of the great saints, etc. Through light that reaches us, we see the source, for example, a star; through Jesus, we are lead to know God the Father. Light shows the true color of things we see; the Lord reveals the true color (the degree of purity) of each human heart.