We shall not follow the Cymric hero through trials the result of which can be foreseen. What, above all else, is striking in these strange legends is the part played by animals, transformed by the Welsh imagination into intelligent beings. No race conversed so intimately as did the Celtic race with the lower creation, and accorded it so large a share of moral life. [Footnote: See especially the narratives of Nennius, and of Giraldus Cambrensis. In them animals have at least as important a part as men.] The close association of man and animal, the fictions so dear to mediaeval poetry of the Knight of the Lion, the Knight of the Falcon, the Knight of the Swan, the vows consecrated by the presence of birds of noble repute, are equally Breton imaginings. Ecclesiastical literature itself presents analogous features; gentleness towards animals informs all the legends of the saints of Brittany and Ireland. One day St. Kevin fell asleep, while he was praying at his window with outstretched arms; and a swallow perceiving the open hand of the venerable monk, considered it an excellent place wherein to make her nest. The saint on awaking saw the mother sitting upon her eggs, and, loth to disturb her, waited for the little ones to be hatched before he arose from his knees. This touching sympathy was derived from the singular vivacity with which the Celtic races have inspired their feeling for nature. Their mythology is nothing more than a transparent naturalism, not that anthropomorphic naturalism of Greece and India, in which the forces of the universe, viewed as living beings and endowed with consciousness, tend more and more to detach themselves from physical phenomena, and to become moral beings; but in some measure a realistic naturalism, the love of nature for herself, the vivid impression of her magic, accompanied by the sorrowful feeling that man knows, when, face to face with her, he believes that he hears her commune with him concerning his origin and his destiny. The legend of Merlin mirrors this feeling. Seduced by a fairy of the woods, he flies with her and becomes a savage. Arthur's messengers come upon him as he is singing by the side of a fountain; he is led back again to court; but the charm carries him away. He returns to his forests, and this time for ever. Under a thicket of hawthorn Vivien has built him a magical prison. There he prophesies the future of the Celtic races; he speaks of a maiden of the woods, now visible and now unseen, who holds him captive by her spells. Several Arthurian legends are impressed with the same character. Arthur himself in popular belief became, as it were, a woodland spirit. "The foresters on their nightly round by the light of the moon," says Gervais of Tilbury, [Footnote: An English chronicler of the twelfth century.] "often hear a great sound as of horns, and meet bands of huntsmen; when they are asked whence they come, these huntsmen make reply that they are of King Arthur's following."