When I was young, we used to drive our Ford Fairlane through the newly minted, dark tunnels under the Smoky Mountains in the Appalachians. A few of those tunnels were so long and dark that no matter how sunny the day the darkness inside was pitch black around us, even with the headlights on. The echoing noise was eerie and loud. I remember finally seeing a faint glow up ahead, a dim light that began to grow brighter until finally the sun burst in at the edge of the tunnel and our car drove out into brilliant sunlight that glimmered off the beautiful river running at our side and made the green of the dense forest deep and gorgeous.
It was the light at the end of the tunnel that had burst upon us and brought the world back into focus.