Japanese Mythology

The Way of the Kami

Shinto — "the way of the kami" — has no founder, no scripture, no creed. It grew from the Japanese experience of living on a volcanic archipelago where typhoons, earthquakes, and eruptions made the power of nature impossible to ignore. The kami are not gods enthroned above the world but sacred presences within it: the force in a thunderstorm, the stillness of an ancient cedar, the spirit of an ancestor watching over a household. Their number is traditionally eight million — yaoyorozu — meaning beyond counting, in everything.

For centuries these beliefs passed orally between shrines and clans. Only when Chinese writing reached Japan and the Yamato court needed a mythological charter for its rule were they set down. The Kojiki (712 CE), dictated by the memorizer Hieda no Are to the scribe Ō no Yasumaro, became the oldest surviving Japanese text. Eight years later the Nihon Shoki offered a more Chinese-inflected version, noting variant traditions alongside the main narrative. Together they form the scriptural foundation of Shinto, though the living tradition — in village festivals, mountain pilgrimages, and household altars — always exceeded what any text could capture.

The Primordial Pair

Japanese mythology begins with Izanagi and Izanami, who stood on the Floating Bridge of Heaven and stirred the chaotic waters below with a jeweled spear. Brine dripping from the spear formed the first island, Onogoroshima. Descending to this island, they performed a marriage ritual — walking around a pillar and speaking words of greeting. When Izanami spoke first, their first offspring were deformed; only when Izanagi spoke first did they successfully create the Japanese archipelago.

They produced the islands — Awaji, Shikoku, Oki, Kyushu, Tsushima, Iki, Sado, and finally the largest, Honshu — and then the kami of seas, rivers, winds, trees, and mountains. But when Izanami gave birth to the fire god Kagutsuchi, she was fatally burned. Enraged with grief, Izanagi beheaded Kagutsuchi, whose blood spawned further deities including the thunder gods.

Izanami descended to Yomi, the land of the dead. Izanagi followed but found her corpse rotting, crawling with maggots and surrounded by eight thunder gods born from her decay. He fled in horror; she pursued in rage, sending the Ugly Females of Yomi after him. Escaping, Izanagi sealed the entrance with a boulder, and the two became separated forever. Izanami vowed to kill a thousand people daily; Izanagi countered that fifteen hundred would be born. Death and birth were set in motion together.

The Three Noble Children

After Yomi, Izanagi purified himself in a river — the first act of misogi, the prototype for all Shinto purification rites. From this cleansing emerged the three most important kami: Amaterasu from washing his left eye, Tsukuyomi from his right eye, and Susanoo from his nose. Izanagi divided the world among them: Amaterasu ruled the High Plain of Heaven, Tsukuyomi the night, and Susanoo the seas.

The siblings' relationships fractured almost immediately. When Amaterasu sent Tsukuyomi to attend a feast prepared by the food goddess Uke Mochi, he watched in disgust as she produced the meal from her own body — rice from her eyes, fish from her nose, game from her mouth. Repulsed, Tsukuyomi killed her. From her corpse grew the staples of Japanese life: rice, millet, silkworms, and cattle. Amaterasu, horrified by the murder, refused to look upon her brother again. Sun and moon were separated, taking turns in the sky — and that, the Nihon Shoki tells us, is why day and night exist.

Susanoo was worse. Rather than ruling his domain, he wept ceaselessly for his dead mother, his crying so fierce it withered mountains and dried rivers. Izanagi banished him. Before departing the heavens, Susanoo climbed to Amaterasu's realm to say farewell — but what followed was not a farewell.

Amaterasu and the Cave of Heaven

Susanoo's rampage through Amaterasu's realm destroyed her rice paddies, defiled her weaving hall, and killed one of her attendants when he hurled a flayed horse through the roof. Amaterasu withdrew into the Heavenly Rock Cave, and the world went dark. Evil spirits flourished; chaos spread across heaven and earth.

The eight hundred myriad kami gathered in desperate council. They set roosters to crow, hung the jewel Yasakani no Magatama and the mirror Yata no Kagami from a sacred sakaki tree, and had the goddess Ame-no-Uzume perform an ecstatic dance — stamping the ground, exposing herself, entering a shamanic trance. The assembled kami erupted in laughter so thunderous that Amaterasu, curious, peeked from the cave. "How can you laugh while the world lies in darkness?" she asked. Ame-no-Uzume answered that they celebrated a goddess more radiant than the sun. The mirror was raised; Amaterasu, seeing her own brilliant reflection, stepped closer. The strong god Ame-no-Tajikarao seized her arm and pulled her out. Light blazed across the world again. A shimenawa rope was strung across the cave mouth to prevent her retreat.

This myth anchors Shinto ritual life. The mirror, jewel, and sword became the Three Imperial Regalia of Japan. The gathering of kami and Ame-no-Uzume's dance established the template for kagura, the sacred dances still performed at shrines.

Susanoo and the Eight-Headed Serpent

Exiled to earth, Susanoo descended to Izumo province and found an elderly couple weeping over their last daughter. Seven of their eight daughters had been devoured by Yamata no Orochi, a serpent with eight heads and eight tails so vast that trees grew on its back and its body spanned eight valleys and hills. The eighth daughter, Kushinadahime, would be next.

Susanoo agreed to slay the beast in exchange for Kushinadahime's hand. He transformed her into a comb tucked in his hair for safekeeping, then instructed the couple to brew sake and set out eight vats behind eight gates. Yamata no Orochi came, smelled the sake, and plunged a head into each vat. As the serpent fell into a stupor, Susanoo hacked it apart. In one of its tails, his sword struck something hard: the legendary Kusanagi no Tsurugi, the Grass-Cutting Sword. He sent this weapon to Amaterasu as a peace offering, and it became the third of the Three Imperial Regalia.

Settling in Izumo with Kushinadahime, Susanoo built a palace and composed what the Kojiki records as the first Japanese poem: "Many-layered clouds rise / to form a many-layered fence / around these newlyweds — / what a many-layered fence / that many-layered fence." His descendants would rule Izumo until the gods of heaven demanded its surrender.

Ōkuninushi and the Ceding of the Land

Susanoo's descendant Ōkuninushi became the great nation-builder. The youngest of eighty brothers, he began as their servant, carrying their baggage while they traveled to court the princess Yagami-hime in Inaba. Along the road they encountered a hare stripped of its fur, lying in agony. The brothers told it to bathe in salt water, which worsened the pain. Ōkuninushi, passing last, advised the hare to wash in fresh water and roll in cattail pollen. Healed, the hare prophesied that Yagami-hime would choose Ōkuninushi over all his brothers. She did.

His jealous brothers killed him twice. Twice his mother secured his resurrection from the heavenly kami. Fleeing their vengeance, Ōkuninushi descended to Ne no Kuni, the underworld realm of Susanoo, where he fell in love with Susanoo's daughter Suseri-hime. Susanoo tested him with deadly trials: a room of snakes, then one of centipedes and wasps, then retrieving an arrow from a burning field. Each time Suseri-hime or helpful creatures saved him. Finally Ōkuninushi stole Susanoo's sword, bow, and koto harp and fled with Suseri-hime. Susanoo, impressed, called after him to use those weapons, subdue his brothers, and make himself ruler of the land.

Ōkuninushi did. With the help of the diminutive god Sukunabikona, he built the earthly realm, teaching humans medicine and agriculture. He became the great kami of Izumo.

But Amaterasu looked down from heaven and declared the Central Land of Reed Plains belonged to her line. She sent envoys to demand Ōkuninushi surrender his kingdom. The first defected. The second vanished. A third, the war god Takemikazuchi, drove his sword into the beach at Izumo and issued an ultimatum. Ōkuninushi's son challenged Takemikazuchi to a contest of strength and lost. Ōkuninushi agreed to yield the visible world to Amaterasu's descendants, asking only that a great shrine be built in his honor. The Izumo Grand Shrine still stands, and its main hall was once the tallest wooden structure in Japan.

The Descent from Heaven

Amaterasu chose her grandson Ninigi to govern the earthly realm. He descended through the clouds carrying the Three Imperial Regalia: the mirror Yata no Kagami, with Amaterasu's instruction to "regard this mirror as my spirit"; the sword Kusanagi; and the jewel Yasakani no Magatama. At the crossroads of heaven and earth, a giant kami named Sarutahiko with a blazing nose appeared to guide him down.

In the land of Himuka, Ninigi met Konohanasakuya-hime, goddess of Mount Fuji and flowering trees, and asked for her hand. Her father offered both daughters: Konohanasakuya-hime and her elder sister Iwanaga-hime, goddess of rocks and permanence. Ninigi accepted only the beautiful younger sister. Her father lamented: had you taken both, your descendants would have endured like stone. Now they will be brief as blossoms. This, the Kojiki explains, is why even emperors die.

When Konohanasakuya-hime became pregnant after a single night, Ninigi accused her of infidelity. To prove the children were divine, she sealed herself in a doorless hut and set it ablaze. Three sons emerged unharmed from the flames. Ninigi's great-grandson Jimmu led an eastern campaign from Himuka to Yamato, guided by the golden crow Yatagarasu sent by Amaterasu. Jimmu became the first Emperor of Japan, and Shinto theology traces an unbroken line from his reign to the present day.

Yamato Takeru

The hero Yamato Takeru — originally Prince Ōsu — entered myth through violence. When his father Emperor Keikō sent him to deal with a disobedient brother, the young prince killed him. Horrified by his son's ferocity, Keikō dispatched him to subdue the Kumaso people of Kyushu, expecting the mission to be fatal.

It wasn't. Yamato Takeru disguised himself as a woman at a Kumaso feast, his beauty convincing enough that the chieftain invited him close. When the chieftain was drunk, Yamato Takeru drove a blade into his chest. The dying man, admiring such daring, gave him the name Yamato Takeru — the Brave of Yamato.

His father next sent him east against the Emishi, and his aunt, the high priestess of Ise, entrusted him with the sword Kusanagi. In Suruga province, enemies lured him into grasslands and set fire all around him. Kusanagi earned its name: he swung the blade, cutting the grass and turning the flames back on his attackers. He conquered the eastern lands. But on his return, at Mount Ibuki, he left Kusanagi behind and encountered a white boar on the mountain path. Dismissing it as the god's mere messenger, he pressed on. The boar was the mountain god itself, and it struck him with a hailstorm and sickness. Weakened and staggering across the plains of Nobono, Yamato Takeru spoke his last words longing for his homeland. He died there, and from his burial mound a great white bird rose and flew toward Yamato. His people built tomb after tomb along the bird's path, but each time they opened one, only the white bird remained, until at last it flew to heaven and was gone.

The Spirit World and Living Practice

Beyond the myths of the Kojiki lies a world of folk spirits. Yōkai — supernatural beings neither fully kami nor fully monsters — populate every corner of the Japanese landscape. The kappa haunts rivers, a water imp with a dish on its head that grants its power; it drowns the careless but can be tricked into bowing, which spills the water and leaves it helpless. Kitsune, fox spirits sacred to the rice god Inari, grow additional tails as they age until a nine-tailed fox has lived a thousand years and can take any form. Tengu, long-nosed mountain spirits once feared as demons, evolved in later folklore into protectors of sacred peaks: legend says they trained the young Minamoto no Yoshitsune in swordsmanship.

The dead remain present too. Yūrei, ghosts of those who died with unresolved grief or improper burial, linger until appeased. The scholar Sugawara no Michizane, exiled and dead of grief in 903, was blamed for plagues and lightning strikes until the court deified him as the kami Tenjin, patron of scholarship. His story follows a pattern central to Japanese religion: dangerous spirits transformed into protective kami through veneration.

When Buddhism arrived in the 6th century, it merged with Shinto rather than replacing it. Under the doctrine of honji suijaku, kami were understood as local manifestations of Buddhist deities: Amaterasu identified with Dainichi Buddha, the war god Hachiman with Amitābha. Temples and shrines shared grounds. The Meiji government forcibly separated them in 1868, but the synthesis persists. Most Japanese today observe Shinto rites for births and New Year, Buddhist rites for funerals and ancestor veneration, and see no contradiction.

At the center of Shinto practice stands the shrine, the matsuri, and the seasonal round. Over eighty thousand shrines dot Japan, each hosting festivals where kami are carried through the community in portable mikoshi shrines, entertained with kagura dances and offerings, and invited to sustain the bond between divine and human worlds. Gion Matsuri fills Kyoto's streets with towering floats for a month; neighborhood festivals bind communities in shared obligation year after year. The mythology of the Kojiki is not a closed canon but a living foundation, renewed each time a priest waves the purification wand, a family visits a shrine at New Year, or a crowd carries a mikoshi through rain-slicked streets.

Before Heaven and Earth

Before Takamagahara existed, before earth or sea, there was only formless chaos, which the Kojiki compares to an egg whose boundaries were unclear. From this chaos the first kami emerged spontaneously: Ame-no-Minakanushi, the Lord of the August Center of Heaven, followed by Takamimusubi and Kamimusubi, the generative forces of creation. These three appeared alone, without partners, and immediately concealed themselves, doing nothing visible but making everything that followed possible. Five more solitary kami emerged after them, and then the first paired beings: Izanagi and Izanami, who would shape the chaos into a world.

The Three Realms

The universe takes the shape of three stacked planes. Takamagahara, the High Plain of Heaven, sits above — an idealized version of the earthly court, with rice paddies, weaving halls, and a river the kami walk along. Amaterasu rules here, and from here the first emperors descended.

Below lies Ashihara no Nakatsukuni, the Central Land of Reed Plains: the earthly realm of humans, animals, and the countless nature kami who inhabit it. This is not a fallen world or a place of exile. The Kojiki presents it as the prize everyone wants. Ōkuninushi builds it. Amaterasu claims it. Ninigi descends to rule it.

Beneath the earth lies Yomi no Kuni, the Land of Darkness. Unlike Buddhist hells, Yomi is not a place of punishment. The dead simply exist there in a diminished, polluted state, separated from the living by the boulder Izanagi placed at Yomotsu Hirasaka. Ne no Kuni, the Root Country where Susanoo ruled after his exile, may be the same place or may be distinct — the sources disagree. What is clear is that it lies below, associated with death but also with vitality: Ōkuninushi descended there and returned stronger.

Pollution and Purification

Shinto cosmology turns on the opposition between kegare (pollution) and hare (purity). Death, blood, disease, and certain transgressions create kegare — not sin in the moral sense, but contamination that distances a person from the kami. The cosmos functions properly when this boundary is maintained.

Izanagi's washing in the river after fleeing Yomi established the pattern: contact with death polluted him, and water restored him. This logic runs through all of Shinto. Purification (harae) takes many forms: water (misogi), the purification wand (haraegushi), the scattering of salt, and the great Oharae ceremony that purifies the entire nation twice yearly. The ritual washing of hands and mouth at a shrine entrance (temizu) enacts in miniature what Izanagi performed at the cosmic scale. Impurity is natural and inevitable, but it must be cleansed. The world depends on it.

Kami and the Sacred Landscape

Kami are not transcendent beings watching from above but presences dwelling within the world. An ancient tree wrapped in a shimenawa rope is not merely home to a kami — it may be the kami itself. Mount Miwa in Nara is worshipped directly, without a shrine building, because the mountain is divine. The three peaks of Kumano are kami accessible through sacred paths still walked today.

The cosmos, then, is not a hierarchy descending from heaven to a profane earth. Every river, rock, and grove is potentially sacred, home to one of the eight million kami. Torii gates mark the boundary between mundane space (ke) and sacred space (hare). The Ise Grand Shrine, dedicated to Amaterasu, is rebuilt every twenty years in a cycle called shikinen sengū — the buildings are temporary, but the sacred ground is not. To destroy the natural world is to displace or harm kami, disrupting the balance between human and divine realms.