An imperial divination rite using turtle shells was held Monday to prepare for the most important ceremony to be performed by Emperor Naruhito upon his enthronement.

In the Saiden Tentei no Gi ritual at the Imperial Palace, diviners observed the cracks that appeared when turtle shells were heated in order to select two prefectures — Tochigi and Kyoto — that will supply crops for the upcoming Daijosai offering ceremony in mid-November.

The Daijosai is performed by a new emperor only once during his reign. The emperor will offer newly harvested rice to his imperial ancestors and the deities of heaven and earth, while also eating the rice himself, as well as praying for peace and abundant harvests for the country and its people.