In part of the ceremony, the emperor enters an inner sanctuary accompanied only by two ladies-in-waiting. Analysts and Shinto ritualists have offered different speculation about what, exactly, Naruhito will do in there while 1,000 guests wait outside.
There is a bed inside, so some say the emperor lies down with his ancestors and enters into spiritual communion with the gods. Others say he actually becomes a god (though the emperor’s godlike status was annulled by the Americans after World War II). Another theory holds that he has a conjugal visit with the sun goddess.
What bothers some critics is that about 2.1 billion yen — or more than $19 million — in taxpayer funds is spent on a religious ceremony.
For now, the criticism is tempered in part by the fact that the imperial family remains beloved in Japan. But in the longer term, the imperial household faces a more existential threat. It is running out of heirs.
After the current emperor, his only successors are his 53-year-old brother, Akishino, and Akishino’s son, the 13-year-old Hisahito. Naruhito’s 83-year-old uncle, Hitachi, is also technically in line.
Unless the Imperial Household Law is revised to admit women as heirs to the throne, the teenage Hisahito could be the end of the line, and debates over the validity of enthronement ceremonies and their cost could be moot.
Research was contributed by Makiko Inoue, Hisako Ueno and Eimi Yamamitsu.