Imagine digging a tunnel and you reached a dead end. A solid huge rock impenetrable by the tools you got. However as life has thought us, there are many other routes and ways where we can try again. So we take a detour and dig a new route. Till you reached another dead end.

And you will try until you die in that tunnel you dig in the first place. The end. But did you ever think that one route was to go all the way back, out of the tunnel, and back to the sunlight?