Gina Frangello has likened pain to a country, a nation of islands where every resident lives alone. Here's one of the rulers: Old King Rheumatism. From The Judge, 1916.
"When you enter the country of Pain, they confiscate your passport.
You leave behind the things and people that used to feel important and familiar, in which you used to believe.
Everyone in the new country is a stranger, though it scarcely matters because pain is really a nation of islands, and everyone who lives there lives alone." —Gina Frangello, "Pain is a Country"