As long ago as Chaucer, people have been writing about what it's like to travel together. At least at the journey's beginning, travelers are forced into an artificial closeness. Most of the time we can maintain our sociability, but inevitably we lapse into quiet isolation---and even sleep. This shot conveys one of those moments in which the person is lost in contemplation...a true candid that shows both the thinker and some of the thoughts.
