Without the light, how can we see the beauty of God's creation? Without light, how can we see where we are walking? The human condition is such that light is a necessary salvation in a world covered with darkness. What if the beauty we behold on this earth is only a glimpse of what is to come? What if the light that we have is only a small glimmer of the glory in God's kingdom? What if when we walk in the light, we not only flee from darkness outside, we grow the light inside us? What if the things we see are signs of another world?
"For the Christian, our present world contains clues and signs to another world - a world which we can begin to experience now, but will only know in all its fulness at the end of things. God created the world with these signs and markers already in place." (Alister McGrath, The Unknown God, Eerdmans, 1999, p40)