The light at the end of the tunnel is a good thing, right? It's that glimpse up ahead that the hard bit is over, and the end is in sight. For some, it's the north star that guides the way - the tunnel is dim, but the goal is always in sight, and the direction is clear. Other times, it takes a while to find that light, but since you know it'll pop up eventually, you keep pushing through the tunnel. The light is the small, good thing that makes the tunnel worthwhile.Sometimes, though, when you finally break through to that light, you might be tempted to look back. This is the scary part, I think. Sometimes, the brighter the light, the more you realize just how dark that tunnel has really been, and just how long you've been in it. When you've been in that dark for years, and finally stumble out into that light, sometimes, it isn't relief that you feel.