The old Irish and the old Welsh, though they had less of the old way than the makers of the _Kalavala_, had more of it than the makers of the Sagas, and it is this that distinguishes the examples Matthew Arnold quotes of their 'natural magic,' of their sense of 'the mystery' more than of 'the beauty' of nature. When Matthew Arnold wrote it was not easy to know as much as we know now of folk song and folk belief, and I do not think he understood that our 'natural magic' is but the ancient religion of the world, the ancient worship of nature and that troubled ecstasy before her, that certainty of all beautiful places being haunted, which it brought into men's minds. The ancient religion is in that passage of the _Mabinogion_ about the making of 'Flower Aspect.' Gwydion and Math made her 'by charms and illusions' 'out of flowers.' 'They took the blossoms of the oak, and the blossoms of the broom, and the blossoms of the meadow-sweet, and produced from them a maiden the fairest and most graceful that man ever saw; and they baptized her, and called her Flower Aspect'; and one finds it in the not less beautiful passage about the burning Tree, that has half its beauty from calling up a fancy of leaves so living and beautiful, they can be of no less living and beautiful a thing than flame: 'They saw a tall tree by the side of the river, one half of which was in flames from the root to the top, and the other half was green and in full leaf.' And one finds it very certainly in the quotations he makes from English poets to prove a Celtic influence in English poetry; in Keats's 'magic casements opening on the foam of perilous seas in faery lands forlorn'; in his 'moving waters at their priest-like task of pure ablution round earth's human shore'; in Shakespeare's 'floor of heaven,' 'inlaid with patens of bright gold'; and in his Dido standing 'on the wild sea banks,' 'a willow in her hand,' and waving it in the ritual of the old worship of nature and the spirits of nature, to wave 'her love to come again to Carthage.' And his other examples have the delight and wonder of devout worshippers among the haunts of their divinities. Is there not such delight and wonder in the description of Olwen in the _Mabinogion_: 'More yellow was her hair than the flower of the broom, and her skin was whiter than the foam of the wave, and fairer were her hands and her fingers than the blossoms of the wood-anemone amidst the spray of the meadow fountains.' And is there not such delight and wonder in-- 'Meet we on hill, in dale, forest, or mead, By paved fountain or by rushy brook, Or on the beached margent of the sea'?