Saint Francis and the Birds

The whole world responds to love, takes joy at its sight and is transformed at its touch.

When Francis preached love to the birds
They listened, fluttered, throttled up
Into the blue like a flock of words
Released for fun from his holy lips.
Then wheeled back, whirred about his head,
Pirouetted on brothers' capes.
Danced on the wing, for sheer joy played
And sang, like images took flight.
Which was the best poem Francis made,
His argument true, his tone light.

--Seamus Heaney