be the soul of (something)

be the soul of (something)

To be the embodiment of a particular trait (which is stated after "of"). My mom is just the soul of kindness—she's always willing to help anyone in need. He think he's the soul of wit, but he couldn't be more unfunny.

See also: of, soul

be the soul of something

be a perfect example of a good quality: She’s the soul of discretion.

See also: of, something, soul