Then the monk sought the cell of a brother monk, and told his strange experience. "I, too, planted a little tree," he said, "and see! It thrives well. But I entrust my tree to its God. he who made it knows better what it needs than a man like me. I laid no condition. I fixed not ways or means. 'Lord, send what it needs,' I prayed, 'storm or sunshine, wind, rain, or frost. Thou has made it and Thou dost know.'"
Story taken from this book (again :)