There's often a sense of excitement when we set off on the road. Even when we're sure of where we're headed there can be some uncertainty about what might happen along the way. There could be disaster and redemption, such as was the case of the traveler set upon by bandits and rescued by the Good Samaritan. Or like Saul/Paul an unexpected encounter could lead us to take an entirely different path. And there are those trips who's true significance is realized only once the journey is over, like that walk Cleopas and his friend took to Emmaus.
Sometimes the road itself proves as much fun as the destination. Ask anyone who rides a motorcycle.
And when the road ends we we're faced with a choice. Turn around or blaze our own trail. How you handle that one depends on who's map you're following.