Once upon a time, there lived a humble juggler, Barnaby by name, who was skillful but suffered every winter from poverty. A devotee of the Virgin, he had few failings apart from enjoying drink a little too much. One day he met a monk, who persuaded him to enter a monastery. All the brethren had exceptional skills to exercise on behalf of Mary, but the juggler felt he had nothing worthy to offer. Finally, he had the notion to juggle copper balls...