Light in the Tunnel

Deep underground, far from the reaches of the sun, exist a vast network of tunnels which urbanites use to easily move around their city. In the despair of darkness, these people are the light in the tunnel. These people are our illumination. These people are fleeting by. These people are gone and we are once again in darkness.

Do these people know that they are the light in the tunnel? Does their own light blind them from the obscurities of the darkness they travel through? As they descend into darkness, they will always carry their own light with them.