A happy and holy life had he lived, but now he was growing old; and as he looked from the convent on the cliffs far over the western waters, he thought daily more and more of Erinn, and a great longing grew upon him to see once more that green isle in which he had been born.  And when he saw, far below, the ships of the sea-farers dragging slowly away into the north in the breezy sunshine or in the blue twilight, his eyes became dim with the thought that perchance these wind-reddened mariners might be steering for the shores of his longing.