Francis sighed. "Brother Leo," he said, "there was once an ascetic who died, mounted to heaven, and fell deep into God's embrace. He had found the perfect beatitude. One day, however, he leaned out so far that he could see the earth below him, and when he did this, he spied a green leaf. 'Lord,' he cried, 'Lord, let me leave, let me touch the green leaf once again!' Do you understand, Brother Leo?"
His words frightened me, and I did not answer. Alas! it was true: the power of the green leaf was as great as that!
--Saint Francis by Nikos Kazantzakis