All it takes is just a little light to dispel the darkness.  Sometimes people are those lights to us with a kind word or act.  Sometimes it is born deep inside of us, knowing that whatever is bad will not conquer our own light.  Sometimes it comes from a distance shore shining out and pointing the way home.  Sometimes it is a dim glow that brings enough light for us to see our way forward, not strong yet still there.  The light coming through the darkness leads us forward, calls us to new places, and helps us find our way back, and sometimes it bears in us the ability to give that light to others lost and needing help finding their own way.