Tamashii® "bkra shi" is a special collection of amulets-bracelets made of natural onyx stones treated with ancient manual techniques to create drawings and symbolic figures. These signs, inspired by the oldest Buddhist tradition, the Nyingmapa (rÑing-ma-pa, "[lineage] of ancients"), express simple and primitive, yet very powerful, concepts, so much to be still widespread throughout the East, from India to Japan and in particular way in China. Tradition has it that each symbol corresponds to a classical tantra to reinforce or pursue the principles of Buddhist philosophy.