There is something peculiarly fascinating to the gross denizens of earth in this notion of skimming like a bird over house-tops. No dreams, save those of love and dalliance, are so charming to the dreamer as visions of flying; to find oneself floating along over the tops of trees, over the streets where less favoured mortals walk, to look down on them as they stroll, is to feel an exquisite pleasure. The mind of childhood and that of ignorance, alike unable to discriminate between reality and illusion, would naturally retain the impression of such a dream with peculiar vividness. The superstition has no doubt been fostered by this fact, although it, like most superstitions, began its career in pre-historic days. The same class of belief attaches to the magical lore of widely separated lands, in all ages. The magic carpet of the Arabian Nights finds its parallel to-day in the enchanted mat of the Chinese conjuror, which carries him from place to place, at a height of twenty or thirty feet in the air. The levitation involved is in Welsh story embodied in the person of Sgilti Yscawndroed; when he was sent on a message through the wood he went along the tops of the trees; in his whole life, a blade of reed grass never bent beneath his feet, so light was his tread.[68]