What is the name of the sacred mirror that is one of the Imperial Regalia of Japan?

The sacred mirror that forms part of Japan’s Imperial Regalia is Yata no Kagami. It is traditionally regarded as one of the Three Sacred Treasures, alongside the sword Kusanagi no Tsurugi and the jewel Yasakani no Magatama.

In Shinto mythology, the mirror was made by the kami Ishikoridome and played a central role in bringing Amaterasu out of the Heavenly Rock Cave. The gods placed it outside the cave during a ritual designed to make the sun goddess curious enough to emerge.

The mirror was later given to Ninigi-no-Mikoto, Amaterasu’s grandson, when he descended to rule the earthly realm. It therefore became part of the mythology surrounding Japan’s imperial line. Mirrors symbolize truth, reflection, wisdom, and honesty in Shinto traditions.

The original sacred mirror is traditionally associated with Ise Grand Shrine and is not available for public inspection. The Imperial Palace maintains ritual representations of the regalia, while the objects’ secrecy contributes to their religious significance.