Hempen paper, silver foil, sulfur, silver mud, etc. Ouroboros is an ancient symbol of a serpent or dragon that bites its own tail and becomes a ring. In Jungian psychology, it appears as a "prototype. It symbolizes the unity of beginning and end, perfection, eternity, and immortality. This work has been slightly bronzed (reddish gold) by applying a silver leaf sulfurization technique using powdered sulfur in the Japanese painting technique. The mandala is expressed by placing a large ouroboros in the center and a slightly smaller ouroboros at the bottom and top. A mandala is an esoteric Buddhist image that represents the state of enlightenment. Japanese painting is based on a style of painting that has existed for more than 1,000 years, and uses traditional materials that have been cultivated throughout history. The technique involves painting on Japanese paper, silk, wood, etc., using natural pigments such as sumi ink, iwa-enogu (mineral pigments), gofun (gofun), etc., and glue (nikawawa) as an adhesive. Gold and other metal materials (gold leaf, etc.) are also used. Iwa-enogu, made from ores, is a beautiful, sand-like powder. Mizuhigure, made from clay, is a fine, stretchy paint with fine particles. Artificial versions of iwa-enogu and mizuhoshi egur are also made, and are available in a wide variety of colors. Goko, made from shells, is a white pigment with fine particles.