"What was he doing during the trip? What was he thinking about? As he had
during the morning, he watched the trees go by, the thatched roofs, the
cultivated fields, and the dissolving views of the countryside that change
at every turn of the road. Scenes like that are sometimes enough for the
soul, and almost eliminate the need for thought. To see a thousand objects
for the first and last time, what could be more profoundly melancholy?
Traveling is a constant birth and death. It may be that in the murkiest part
of his mind, he was drawing a comparison between these changing horizons and
human existence. All aspects of life are in perpetual flight before us.
Darkness and light alternate: after a flash, an eclipse; we look, we hurry,
we stretch out our hands to seize what is passing; every event is a turn in
the road; and suddenly we are old. We feel  slight shock, everything is
black, we can make out a dark door, the gloomy horse of life that was
carrying us stops, and we see a veiled and unknown form that turns him out
into the darkness."
-Victor Hugo, Les Miserables