Phrase Meaning – Explanation of ‘This Heart of Mine’

double-possessivesphrase-meaningpoetry

I was wondering about difference between "my" and "of mine" and have found some posts that say:

"my" is definite form and "of mine" is indefinite one. So, "of mine" is the same as "one of my".

It makes sense for most usecases I've heard, but I still don't understand what "this heart of mine" means. Can you help me?

P.S. Please forgive me for mistakes in this question, I'm not an English-speaking man.

Best Answer

It is (often) an emphatic form.

So, tell me, Mrs Jones, about this son of yours! I hear he's an accomplished singer, mathematician, and painter.

This ol' heart of mine has been skipping a few beats lately, doc.

She'd better start cleaning up after that dog of hers!

"ole" or "ol'" = "old" (so-called "eye-dialect").