Both Uses

parable
in
The Man Without a Country
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It was the intention of this parable, which describes the life of one man who tried to separate himself from his country, to show how terrible was his mistake.†
Chpt Intr. *

parable = a short story told to teach a moral lesson
It does not need now that a man should curse the United States, as Philip Nolan did, or that he should say he hopes he may never hear her name again, to make it desirable for him to consider the lessons which are involved in the parable of his life.†
Chpt Intr.

Definitions:

(1) (parable)
a short story told to teach a moral lesson -- especially those told by Jesus in the New Testament
(2) (meaning too rare to warrant focus)