What singular use of symbolism in a book always resonates with you?

I am reading A Christmas Carol again, as tradition, and always get enamored by one line in particular when Scrooge is describing the Ghost of Christmas Present.

"Girded round its middle was and antique scabbard; but no sword was in it, and the antique sheath was eaten up with rust."

This has always struck me as both profoundly hopeful in it's simplicity. No weapon and its holder rusted, implying no care, worry, or need for violence. It always makes me wonder if such a world is possible.

What are some examples like this y'all have read which stuck with you? I'm curious to know.