There is always a light at the end of the tunnel, but there might be a bend in the middle blocking the view.
Eventually you come out the other side....
This photo sprung to mind as soon as I saw this weeks Gallery prompt - Light. I took it several years ago on my first narrowboat trip on the Grand Union canal, just as we came out of Blisworth tunnel.
The tunnel is 2813m long and after doing that in the dark the daylight is lovely to see as you emerge.
After digging out this photo it's now taking pride of place on my fridge to remind me that we'll always reach the light eventually!