Performing Chiken-in representing Kongokai Dainichi Nyorai is said to have a meaning that to perform the mudra of Dainichi Nyorai who was identical with Amaterasu Omikami (the Sun Goddess) in Honji-suijaku (theory of original reality and manifested traces), the emperor to be enthroned was identified with Dainichi Nyorai and becomes a supreme existence.
大日如来を表す智拳印を結ぶ点については、本地垂迹において天照大神と同一視された大日如来の印相を結ぶことによって、即位する天皇が大日如来と同一化し、至高な存在となる意味があるとされる。