Any metaphor in the monkeys paw? quote/example

Did you want different ones from the last answer?

yes

Okay I'll check

I think that Metaphorically, Herbert died because he was caught in the machinery of fate. Yes he was caught in a literal machine but fate was pushed awry after Mr. White tampered with fate by making his wish for more money. There isn't a particular quote for this but the idea is an apt metaphor.