In sokuikanjo, the emperor about to be enthroned received the initiation of mudra and mantra from a person from Sekkan-ke, usually from the Nijo family (inmyodenju), and executed them during the enthronement ceremony.
即位灌頂は、即位する天皇が摂関家、主に二条家の人物から印相と真言の伝授を受け（印明伝授）、それを即位式の中で実修する。