Tsukuyomi

The Moon God of Night

Tsukuyomi-no-Mikoto rules over the night sky and the lunar realm, embodying the beauty and mystery of moonlight. Born alongside Amaterasu and Susanoo from their father Izanagi's purification ritual, Tsukuyomi emerged from the washing of Izanagi's right eye and was entrusted with dominion over the nocturnal world.

The Eternal Separation

The defining myth of Tsukuyomi explains why the sun and moon never appear together. Amaterasu once sent Tsukuyomi to represent her at a feast hosted by Uke Mochi, the goddess of food. When Uke Mochi produced the feast by expelling food from her mouth and other orifices, Tsukuyomi was so disgusted that he killed her in fury. Amaterasu was horrified by her brother's violence and declared she would never look upon him again—thus the sun and moon were eternally separated, one ruling the day and one the night.

Role and Symbolism

Unlike many moon deities in other traditions, Tsukuyomi is distinctly male in Shinto mythology. He represents the passage of time, the rhythm of tides, and the quiet contemplation of night. His domain complements rather than opposes his sister's, together creating the cycle of day and night that governs earthly life.

Worship

Though less prominent than his siblings, Tsukuyomi is venerated at several shrines including the Tsukiyomi Shrine in Ise, located near his sister Amaterasu's grand sanctuary. He is honored during lunar festivals and by those who work under the night sky.