Mutsu dialect a butterfly. In classic time this word signified also a beautiful woman. …
It is possible also that some weird Japanese beliefs about butterflies are of Chinese derivation; but these beliefs might be older than China herself. The most interesting one, I think, is that the soul of a living person may wander about in the form of a butterfly. Some pretty fancies have been evolved out of this belief,—such as the notion that if a butterfly enters your guest-room and perches behind the bamboo screen, the person whom you most love is coming to see you. That a butterfly may be the spirit of somebody is not a reason for being afraid of it. Nevertheless there are times when even butterflies can inspire fear by appearing in prodigious numbers; and Japanese history records such an event. When Taïra-no-Masakado was secretly preparing for his famous revolt, there appeared in Kyōto so vast a swarm of butterflies that the people were frightened,—thinking the apparition to be a portent of coming evil. … Perhaps those butterflies were supposed to be the spirits of the thousands doomed to perish in battle, and agitated on the eve of war by some mysterious premonition of death.
However, in Japanese belief, a butter-
