Why do we hold onto grudges?

Keeping grudges is such an odd thing to do. No one wants to be angry, resentful, and unhappy, surely, any more than we’d jump at the opportunity to keep a sticky, stinky, snarling vermin in the house for a pet. And yet we do keep it and cherish grudges so ardently, sometimes for decades. Why?

Read the rest of my latest for The Catholic Weekly here.

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Image: Orin Zebest via Flickr (Creative Commons)