When the guitar
Can forgive the past,
It starts singing.

When the guitar can stop worrying
About the future,
You will become
Such a drunk laughing nuisance
That God
Will lean down
And start combing you into his hair.

When the guitar can forgive
Every wound caused by
Others,
The heart starts singing.

– Hafiz

Well, I will admit that Hafiz wrote violin instead of guitar.
Thanks Y.