I love caving. I love exploring the depths of the earth. It's fun and exciting and appeals to my sense of adventure.
The image above is in a cave system in Victoria, Australia. What you see is not the entrance to the caves, but a mere hole in the cave ceiling where the light is able to shine through. This is the only area in the otherwise dusty caves where there is such life.
Jesus is this life-giving light for us. If we choose not to bask in His glory, then we will wither and die. But if we do choose His light, then we will grow to be strong and vibrant.