I am neither religious nor superstitious, but there is something otherworldly about the space where two roads come together. The devil is said to set up shop there if you want to swap your soul for something more useful. If you believe that God can be bribed, it's also the hallowed ground to make sacrifices. In the literal sense, it's also a place to change direction, but once you've changed it, you're stuck until you come to another crossroads, and who knows how long that will be.