F. Hadland Davis, Myths & Legends of Japan
“ From the river-bank dart myriads of these flashing insects, and in a moment they form a great silver-shining cloud. The cloud breaks and the flowing river, once dark as black velvet, becomes a winding stretch of gleaming jewels. No wonder the Japanese poet cries: "Do I see only fireflies drifting with the current? Or is the Night itself drifting, with its swarming of stars?"There is a legend connected with this fascinating spectacle. It is believed that the Minamoto-Firefly and the Taira-Firefly are the ghosts of the old warriors of the Minamoto and Taira clans. ”
