I am studying the maibayashi from the noh Yōrō (養老) which inspired Yeats’s At the Hawk’s Well. The main character of the play is the deity of a mountain from which an elixir of eternal youth flows. The deity reveals to be at the same time the guardian of the mountain (山神) and an avatar of Yōryū Kannon (楊柳観音), the Willow Kannon. The willow tree is associated with the element water, and this Kannon is depicted with a vase containing a medicine. This representation also overlaps with that of Suigetsu Kannon (水月観音), the Water and Moon Kannon. Famous Korean depictions of this deity were displayed at the Sen-oku Hakuko-kan in Kyoto last year. It was such a wonderful exhibition!