The Light in the Tunnel

The light at the end of the tunnel may be good,
But maybe not so much the one in the middle.
Near the exit the light will be placed where it should,
But the one where it should not be is a riddle.

That is not to say all riddles are bad for you,
Nor that you can avoid all of your life’s tunnels.
You will sometimes need a tunnel to get you through,
Although they will limit your options like funnels.

That unexpected light may be another path
Or somebody coming the opposite way through.
It is best to be ready to redo your math
And change your course when it is what the clues tell you.

But remain thankful for whatever light there be
When you must travel where the darkness is the rule.
Seeing may not be knowing what it is you see,
But shutting your eyes is the practice of a fool.