The mudra which the emperor performs at the time of sokuikanjo was Chiken-in (the knowledge-fist mudra) which represented Kongokai Dainichi Nyorai (Dainichi Nyorai as a physical principle).
即位灌頂の際、天皇が結ぶ印相は金剛界大日如来を表す智拳印とされる。