It is one of the forms of inso that may be assumed by Shakyamuni Nyorai, which is formed by both hands turned upward in front of the chest with the tips of the thumbs of both hands put together and the tips of the same fingers of both hands put together to form a circle.
釈迦如来の印相の1つで、両手を胸の高さまで上げ、親指と他の指の先を合わせて輪を作る。