Abe no Seimei: Japan's Legendary Onmyoji and Master of Onmyodo

2025年8月3日
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Abe no Seimei: Japan's Legendary Onmyoji and Master of Onmyodo

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A man of legend. A master of stars and spirits. A bridge between the human and the divine.

More than a thousand years ago, in the elegant yet turbulent world of Heian-era Japan, a mystic named Abe no Seimei walked the line between light and shadow.

To some, he was a government official and scholar.

To others, a powerful sorcerer who could summon spirits and read the secrets of the stars. Today, his legacy lives on—not just in shrines and scrolls, but in manga, films, video games, and the imagination of millions.

He is a cultural icon shaped by centuries of belief, art, and mystery. Who was Abe no Seimei? And why does his story still echo through time?

Let us step into the world of onmyōdō—and discover the man behind the myth.


The Historical Abe no Seimei

Abe no Seimei (921–1005) was a real historical figure who served as a court official during the mid-Heian period of Japan. As an onmyoji—a practitioner of onmyōdō (the “Way of Yin and Yang”)—Seimei held an important role in government affairs, particularly in divination, spiritual protection, and rituals to ward off misfortune.

He served under several emperors and became especially trusted by Emperor Kazan (花山天皇) and the powerful regent Fujiwara no Michinaga. His duties included:

  • Reading celestial omens
  • Conducting purification rites
  • Identifying and dispelling curses or malevolent spirits

Seimei belonged to the Abe clan, a family well known for its expertise in astronomy and esoteric knowledge. He rose through the ranks of the Imperial Bureau of Onmyō, eventually becoming the chief onmyoji of his time.

His name appears in contemporary aristocratic diaries, such as Midō Kanpakuki—the journal of Fujiwara no Michinaga—demonstrating that Seimei was a respected and active figure in the court.

Even during his lifetime, stories of his extraordinary abilities began to circulate, blurring the line between man and myth. His profound knowledge of both natural and supernatural forces cemented his place as a legendary figure in Japanese cultural memory.


The Fox Mother Kuzunoha: A Legend of Seimei’s Birth

One of the most enduring legends about Abe no Seimei’s origins is the story of Kuzunoha, a white fox spirit who took the form of a human woman.

The earliest surviving record of this tale appears in the Hokishō (簠簋抄), published in 1647, and the story later became widely known through the 1674 ballad Shinoda-zuma (The Wife from Shinoda).


A Mysterious Encounter

A man named Abe no Yasuna, who lived in Abe-no, Settsu Province (modern-day Osaka), once rescued a white fox from government hunters in the forest of Shinoda.
Grateful for his kindness, the fox transformed into a human woman—Kuzunoha—and introduced herself as a wanderer.
Yasuna and Kuzunoha fell in love, married, and lived together in peace.


The Gifted Child

The couple had a son, Dōjimaru, who from an early age displayed signs of extraordinary perception.
He could sense things no other child could—spirits, strange presences, whispers on the wind.
Unbeknownst to most, he had inherited spiritual powers from his mother’s fox blood.


The Revealed Secret

One day, Dōjimaru caught a glimpse of his mother in her true fox form.
Realizing her identity had been exposed, Kuzunoha knew she could no longer remain in the human world.

Before leaving, she wrote a farewell poem on a sliding screen:

If you love me, come seek me in the forests of Shinoda…

Then, she vanished.


A Journey to the Forest

Devastated, Yasuna and young Dōjimaru traveled to Shinoda Forest, following the message.

There, Kuzunoha appeared once more—briefly—and entrusted her son with two treasures:

  • A golden box
  • A crystal sphere

She told them that one day, these items would reveal their true power.


The Birth of Abe no Seimei

Years later, Dōjimaru took the name Abe no Seimei and began studying the secrets of onmyōdō—the Way of Yin and Yang.
Through discipline and inherited talent, he became a master of spiritual arts.
When the emperor fell gravely ill, Seimei used the sacred treasures given by his mother to perform a healing ritual and cure the illness.


The legend of Kuzunoha is more than a tale of love and loss—it is the origin of a powerful mystic.
Seimei was not just a gifted onmyoji—he was a child born of both worlds, empowered by a mother’s love that transcended form and time


Duel of the Diviners: Seimei vs. Ashiya Dōman

Abe no Seimei’s most famous rival in folklore is Ashiya Dōman—sometimes called Dōma Hōshi (道摩法師).
Over the centuries, many stories have been told of their magical confrontations, each version highlighting Seimei’s wisdom and supernatural power.


A Contest of Divination

In one widely told tale, Dōman proposed a challenge to Seimei in the Imperial Palace. The emperor placed an object inside a sealed chest and asked both onmyoji to divine its contents.

Dōman confidently declared:

There are sixteen mandarin oranges inside.

Seimei, after calmly performing a ritual, replied:

There are sixteen mice inside.

The nobles laughed, thinking Seimei had surely lost.

But when the chest was opened, sixteen mice ran out in all directions—Seimei had been right.
According to this version, Dōman accepted defeat and became Seimei’s disciple.


The Curse on Fujiwara no Michinaga

Another famous account, found in collections like Uji Shūi Monogatari and Kojidan, tells of Dōman conspiring with court noble Fujiwara no Akimitsu to place a curse on powerful statesman Fujiwara no Michinaga.

However, Michinaga’s dog sensed the curse and howled in distress.

Seimei investigated and quickly exposed the dark magic at work. As a result, Dōman was banished from the capital, and Michinaga’s position remained secure.


These stories may differ in details, but they all serve the same purpose:

To show Seimei’s role as a protector of the realm, a master of unseen forces, and a figure whose spiritual insight outmatched even the most cunning of rivals.


Other Notable Legends of Abe no Seimei

Throughout his life, Abe no Seimei was at the center of many extraordinary tales. These legends, though varied in theme and origin, all reflect his unmatched spiritual abilities and his role as protector of the realm.

A Glimpse of a Demon

While still a student of onmyōdō, Seimei accompanied his master, Kamo no Tadayuki, on a journey. Along the way, Seimei sensed a powerful demon approaching.
He quickly warned his master and used a concealment spell to hide them both—saving their lives.
Impressed by his apprentice’s gift, Tadayuki decided to teach Seimei all the secrets of the art.


Sealing a Tengu in Nachi

In 979, at the request of Prince Morosada (later Emperor Kazan), Seimei traveled to Nachi in Wakayama to perform a ritual to seal a rampaging tengu—a powerful mountain spirit.
This marked the beginning of Seimei's close association with the imperial family.


A Warning Too Late

In 986, Emperor Kazan was tricked into abdicating and taking Buddhist vows.
Seimei, having read the celestial signs, realized something was wrong and sent his shikigam to warn the emperor.
Unfortunately, the message arrived too late to stop the plot.


Healing Emperor Ichijō

In 993, Emperor Ichijō fell seriously ill. Seimei performed a purification ritual (misogi) to cleanse the spiritual impurity.
According to legend, the emperor recovered almost immediately.


Calling Down the Rain

In 1004, Japan suffered a severe drought. Powerful regent Fujiwara no Michinaga turned to Seimei for help.
Seimei performed a rain-making ritual—and soon after, rain fell across the land, saving the crops and people.


Revealing the Demon of Mount Ōe

The notorious demon Shuten Dōji, said to dwell in Mount Ōe, was terrorizing the capital—abducting young women and stealing treasure.
The imperial court was baffled by the mystery.
Seimei, however, used his spiritual insight to reveal that the demon was hiding in Mount Ōe, enabling warriors to hunt him down and destroy him.


These tales show Abe no Seimei not just as a mystic, but as a protector of emperors, a healer of illness, and a guardian against the unseen dangers that threatened the world of his time.


The Seimei Star: A Symbol of Power

One of the most iconic symbols associated with Abe no Seimei is the five-pointed star, known as the Seimei-mon (晴明紋).
This geometric figure, often mistaken for the Western pentagram, holds a unique place in Japanese spiritual tradition.


Meaning and Use in Onmyōdō

The Seimei Star represents the Five Elements of onmyōdōwood, fire, earth, metal, and water—which are central to traditional Japanese cosmology and divination.

Seimei used the star as a magical seal to:

  • Ward off evil spirits
  • Restore harmony and cosmic balance
  • Assist in purification and spiritual rituals

Even today, the symbol appears prominently at Seimei Shrine in Kyoto, where it adorns amulets, torii gates, lanterns**, and other sacred objects.

It serves not just as a historical relic, but as a living emblem of spiritual protection.


Comparison with the Western Pentagram

While visually similar, the Seimei Star and the Western pentagram differ significantly in meaning, context, and cultural reception.

The following table outlines their key differences:

AspectWestern PentagramSeimei Star (晴明紋)
Cultural OriginAncient Mesopotamia, Greece, early Christianity, Western esotericismJapanese onmyōdō (陰陽道), influenced by Taoist cosmology
SymbolizesEarth, air, fire, water, and spiritWood, fire, earth, metal, and water (五行)
UsageRitual magic, personal symbols, religious emblemsSpiritual seals, purification, protection rituals
OrientationUpright = positive, inverted = often viewed as negativeAlways symmetrical; no distinction in orientation
Cultural PerceptionSometimes misunderstood or associated with the occultRespected as sacred and protective, widely used at shrines
Modern PresenceOccult circles, popular culture (e.g. Wicca, fantasy fiction)Seimei Shrine, charms, historical reenactments, cultural festivals

Rather than being Japan’s version of the Western pentacle, the Seimei Star represents a distinct cosmological system and cultural mindset—one that views harmony with nature and spiritual forces as essential to both personal and societal well-being.


Seimei Shrine: A Place Where Legend Lives

If you're ever in Kyoto and wish to step into the world of Abe no Seimei, there's no better place than Seimei Shrine (晴明神社)—a sacred site dedicated to Japan’s most legendary onmyoji.


A Shrine Rooted in Legend

Built in the year 1007 by imperial order, Seimei Shrine was established to honor Abe no Seimei shortly after his death. Located just north of Nijo Castle in Kyoto, the shrine continues to draw visitors seeking protection, purification, and a glimpse into the mystical world of onmyōdō.


What to See

  • The Seimei Star (五芒星): Found on gates, lanterns, and amulets throughout the shrine.
  • The Sacred Well (晴明井): Said to bring blessings for good health, the well’s water is still drinkable today. Its spout is adjusted each year to face the year's lucky direction (ehō).
  • Omamori Charms: Protective talismans featuring Seimei’s star are popular among visitors.
  • The Sacred Camphor Tree (御神木の楠): Estimated to be over 300 years old. Visitors often touch its bark to feel its strength.

The entire shrine grounds are rich with symbolism and folklore, offering a peaceful yet mysterious atmosphere.


Plan Your Visit

  • Location: Horikawa-dori, Kamigyo Ward, Kyoto
  • Access: From Kyoto Station, take City Bus #9 toward Nishigamo. Get off at "Ichijō Modoribashi / Seimei Jinja-mae" (一条戻橋・晴明神社前). The shrine is just a 1-minute walk from the bus stop.
  • Website: Seimei Shrine (Japanese only)

Even without Japanese language skills, visitors are welcome to explore the grounds, make offerings, and purchase charms. The shrine shop and staff are accustomed to international guests.


Seimei in Modern Imagination

Though Abe no Seimei lived over a thousand years ago, his legend has not faded with time. In Japan, he remains a captivating cultural icon, seamlessly blending ancient mysticism with modern pop culture.

From novels and films to anime, manga, and video games, Seimei has been reimagined countless times—not as a relic of the past, but as a living symbol of mystery, wisdom, and spiritual power.


A Timeless Character in Japanese Media

One of the most influential portrayals of Seimei is in the bestselling novel series Onmyōji by Baku Yumemakura, which presents him as a charismatic and enigmatic master of the unseen. This version inspired a popular 2001 film, as well as manga and anime adaptations that expanded his legend to new audiences.

Across genres, Seimei is often depicted as a sorcerer, exorcist, or mystical tactician, clad in flowing robes and wielding sacred talismans.

This elegant and stylish image—cool, composed, and cloaked in mystery—has made him a visually striking and beloved character in modern media.


A Mystery Beyond Translation

For readers outside Japan, Seimei’s stories may feel unfamiliar—steeped in cultural beliefs, historical contexts, and spiritual traditions that differ from Western fantasy.

Understanding the role of onmyoji, the concept of yin-yang, or the meaning behind his rituals can be challenging without background knowledge.

Yet this sense of mystery is part of the allure. In a world filled with familiar heroes, Seimei offers something different: a glimpse into Japan’s unique spiritual heritage, where logic and magic, ritual and myth, coexist. Even when we do not fully understand him, Seimei invites us into a world that is strange, beautiful, and quietly profound.


A Legacy of Light and Shadow

From the Heian court to Kyoto’s quiet shrines—and now into the pages of novels and the screens of anime—Abe no Seimei’s story spans worlds seen and unseen.

He was a historical figure, a legendary mystic, and a pop culture icon. Whether reading omens for emperors or sealing demons in distant forests, Seimei walked a path that balanced nature and the supernatural, ritual and intuition.

His enduring appeal lies not only in his mystical powers, but in what he represents:

  • A bridge between tradition and imagination
  • A symbol of wisdom in uncertain times
  • A glimpse into Japan’s spiritual heart

For those curious enough to explore, Abe no Seimei offers more than myth—he offers a doorway into a world where belief shapes reality, and mystery becomes meaning.

He was born between worlds. He still lives in the space between them.