四智印

Four wisdom symbols of the Shingon cult: 大智印 or 摩訶岐若勿他羅 mahājñāna-mudrā, the forms of the images; 三昧耶印 samaya-jñāna-mudrā, their symbols and manual signs; 法智印 dharma-jñāna-mudrā, the magic formula of each; 羯摩智印 karma-jñāna-mudrā, the emblems of their specific functions.