Hempen paper, mineral pigments, sumi ink, charcoal, silver sumi ink, kinbari, mixed media, paulownia wood panel. Enso, which has long been seen in Zen painting, expresses enlightenment, truth, buddhahood, the entire universe, and peace of mind. The enso portion is raised, and charcoal is used in some parts. The paulownia wood panel makes it quite lightweight. Despite its small size and light weight, it is 3 cm thick. Nihonga" 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 iwa-enogu (mineral pigments) and gofun (gofun), 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.