Tsukuyomi
The moon god who killed a goddess, forcing night and day to forever part.
Tsukuyomi is one of the three noble deities born from Izanagi's purification ritual in Japanese Shinto mythology, specifically representing the moon and the night. As the younger brother of Amaterasu (the sun goddess) and Susanoo (the storm god), Tsukuyomi embodies the cool, reflective, and mysterious aspects of the cosmos that balance the fiery radiance of day. Unlike his siblings who are central to many active myths involving creation or conflict with humans, Tsukuyomi's role is defined by a singular, tragic separation from the sun. His story explains the fundamental cosmic order where night and day never meet, establishing the eternal rhythm of time that governs the world.
Quick Facts
- Other names
- Tsukuyomi (ツクヨミ, 月読)
- Tsukiyomi (ツキヨミ)
- 月読尊、月弓尊、月夜見尊、月讀尊
- God of
- God of the moon
- Consort
- Amaterasu (some myths)
- Parents
- Izanagi (Kojiki); Izanagi and Izanami (Nihon Shoki)
- Siblings
- Amaterasu; Susanoo (and others)
- Region
- Japan
Lore & Background
Tsukuyomi's origin is tied to the purification of his father, Izanagi-no-Mikoto, after he returned from Yomi, the land of the dead. As Izanagi washed his face, Tsukuyomi was born from his right eye, while Amaterasu emerged from his left and Susanoo from his nose. Upon his birth, Tsukuyomi was immediately granted dominion over the night, joining his sister in ruling the heavens. The defining moment of his existence occurred when he visited the earthly realm to receive offerings from Uke Mochi, the goddess of food.
When Uke Mochi produced a magnificent feast by turning her face toward the sea, land, and fields, Tsukuyomi was horrified by what he perceived as a grotesque method of creation. In a fit of rage, he slew her with his sword. This act of violence caused the earth to rot and food to vanish until Amaterasu intervened. Upon learning of the murder, Amaterasu was so disgusted that she refused ever to look upon Tsukuyomi again.
She declared that they could no longer share the same sky, creating the eternal separation between day and night. Consequently, Tsukuyomi retreated into his own domain, ruling the moon in solitude, forever cut off from his sister's light.
Reader's Guide
Tsukuyomi stands as the celestial counterbalance to Amaterasu within the Shinto pantheon. While the sun embodies warmth, vitality, and the bustling energy of the living world, Tsukuyomi governs the cool, reflective silence of the night. His domain is not one of active intervention or human worship, but of quiet observation and the necessary rhythm of rest. He represents the mystery that follows the light, a solitary ruler whose tragic isolation enforces the fundamental order of time: day and night must remain eternally apart.
Did You Know?
- He is one of the few major deities in Japanese mythology who has no direct connection to human worship or active festivals.
- The myth explains that night and day are separated because Tsukuyomi killed Uke Mochi, causing Amaterasu to refuse seeing him.
- In some variations of the Kojiki, he is referred to as 'Tsukiyomi-no-Mikoto', emphasizing his nobility despite his isolation.
More in Asian Mythological Beings
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