What is important about the title of Ernest Hemingway's "A Clean, Well-Lighted Place"?

The title of Ernest Hemingway's short story, "A Clean
Well-Lighted Place," on the surface refers to the old man's preference of the night life
available in the town. Unlike the younger waiter, who likes the more lively atmosphere
of noisy bars and bodegas, the old man seeks out a quiet, "clean well-lighted place" to
spend his lonely evenings. He does not seek out friendship or excitement, but instead
prefers the solitude of the cafe he frequents. He is not alone. The older waiter also
likes such places, for he too is a lonely man who "does not want to go to bed... who
need(s) a light for the night." Hemingway uses the title to suggest the solidarity
evident between the older waiter and the old man; the darkness outside also symbolizes
an evil or unknown element. Their lost youth has left both of them lacking in confidence
and a void in their souls, and they both seek out the "well-lighted places" to while
away the night. The older waiter will eventually return home to his bed, staying awake
until light comes once again, when he can peacefully find a bit of
sleep.