This vessel represents the revival of an earlier ceramic style characterized by a milky-white glaze and painterly decoration. The designs on the exterior of this water basin suggest a grassy bank while the interior depicts water plants. This basin was likely used for handwashing, a reflection of Japan’s established purification practices. Entering a Buddhist temple, Shinto shrine, or private tea house required symbolic cleansing by rinsing the mouth and pouring water over each hand.