Intorducing Dr Mann. His first name is Hugh.
When trappers want to catch a monkey they put a banana in a cage. The monkey squeezes his hand between the bars, and can't get away because he won't drop the banana.
This is what we do, too. We hold onto pain and anger - we don't drop our own bananas.
When we forgive and forget, we move on with our own lives.
To be free in life (and to remove the necklace) - - drop the banana.