Japanese Eternal Flame of Mount Misen

High above the tranquil waters of the Seto Inland Sea, on the sacred island of Miyajima in Hiroshima Prefecture, a flame has been quietly burning for over twelve centuries. Known as Kiezu-no-hi—literally “the fire that never goes out”—this enduring blaze is more than a curiosity. It is a living symbol of spiritual discipline, cultural continuity, and the deep interweaving of religion and nature in Japan.

 

Origins in Ascetic Practice

The story of the eternal flame begins in the year 806 CE, when the Buddhist monk Kūkai (also known as Kōbō Daishi), one of Japan’s most revered religious figures, arrived on Mount Misen. After returning from China, where he studied esoteric Buddhism, Kūkai sought a remote and spiritually potent location for ascetic training. He found it in Miyajima, an island long regarded as sacred in both Shinto and Buddhist traditions.

During a rigorous 100-day meditation practice known as Gumonji, Kūkai is said to have lit a ritual fire as part of the goma ceremony—a central rite in Shingon Buddhism. This fire, believed to purify the mind and eliminate negative energies, became the origin of Kiezu-no-hi.

Remarkably, the flame has been maintained continuously since that time, carefully tended by generations of monks at the Daishoin Temple. Though buildings around it have been destroyed and rebuilt over the centuries, the fire itself has been preserved, symbolizing resilience and devotion.

 

The Sacred Geography of Mount Misen

Mount Misen, rising approximately 535 meters above sea level, is the highest peak on Miyajima Island and has long been considered a sacred mountain. Its dense, primeval forests and unusual rock formations contribute to an atmosphere of mystery and reverence.

The eternal flame resides within Reikadō Hall near the summit, a modest wooden structure that shelters the fire. Pilgrims and visitors who reach this site—either by hiking through forest trails or via ropeway—often describe the journey itself as a spiritual experience. The mountain has attracted worshippers for over a millennium, reinforcing its role as a bridge between the human and the divine.

 

The Seven Wonders of Misen

Kiezu-no-hi is perhaps the most famous of the “Seven Wonders of Mount Misen,” a collection of natural and supernatural phenomena tied to local legend. These include:

• Shakujo-no-ume, a plum tree said to have grown from Kūkai’s staff
• Mandara-iwa, a rock inscribed with sacred symbols
• Kanman-iwa, a tidal rock mysteriously affected by the sea despite its elevation
• Lost wonders such as the Dewy Cherry Tree and the Dragon Fire Cedar
• And the eerie Hyoshigi-no-oto, the unexplained sound of wooden clappers said to be produced by a tengu spirit

Together, these wonders deepen the mountain’s aura, blending folklore, spirituality, and natural phenomena into a unified cultural landscape.

Ritual Use and Healing Beliefs

Inside Reikadō Hall, the flame burns in two forms: a candle flame near a Buddha statue and a hearth fire beneath a large iron kettle. Water boiled in this kettle—known as Reisui—is offered to visitors, who believe it possesses healing properties and can bring good fortune.

This practice reflects a broader theme in Japanese spirituality: the belief that natural elements such as fire and water can carry divine power. Drinking the water is not merely symbolic; it is an act of participation in a centuries-old ritual, connecting the individual to a lineage of faith stretching back to Kūkai himself.

 

Survival Through Time and Disaster

Although often described as “eternal,” the flame’s continuity has required careful human stewardship. Over the centuries, Reikadō Hall has been damaged or destroyed multiple times by natural disasters, most recently in 2005. Each time, the structure was rebuilt, and the flame preserved or rekindled from an existing source, ensuring its uninterrupted legacy.

In some cases, the flame has been divided into smaller flames to safeguard against accidental extinction. This practice underscores an important distinction: the flame’s “eternity” lies not only in its physical continuity but also in the sustained intention to preserve it.

A Flame Beyond the Mountain

The significance of Kiezu-no-hi extends far beyond Mount Misen. In 1964, a portion of the flame was used to ignite the Peace Flame in Hiroshima’s Peace Memorial Park. This symbolic act linked the ancient spiritual fire to a modern message of hope and the abolition of nuclear weapons.

Earlier, embers from the flame were reportedly used to light industrial furnaces, illustrating how tradition and modernity can intersect in unexpected ways.

Thus, the flame serves as a bridge not only between past and present but also between spirituality and secular life.

Cultural and Philosophical Significance

At its core, Kiezu-no-hi represents continuity—a concept deeply valued in Japanese culture. The flame’s persistence reflects ideals of discipline, mindfulness, and respect for tradition. It also embodies the Buddhist notion of impermanence paradoxically sustained through constant renewal: while the fuel and structure may change, the essence of the flame remains.

Moreover, the site illustrates the syncretism of Shinto and Buddhism in Japan. Miyajima itself has been a place of nature worship since ancient times, and Kūkai’s establishment of Buddhist practices on the island did not replace these traditions but rather integrated with them.

This blending of beliefs is visible in the reverence for natural features, the presence of temples and shrines, and the spiritual interpretation of phenomena like the Seven Wonders.

 

The Modern Visitor Experience

Today, Kiezu-no-hi continues to attract pilgrims, tourists, and curious travelers from around the world. Reaching the flame requires effort—either a steep hike or a combination of ropeway and walking—but this journey is part of its appeal. The ascent through ancient forests, accompanied by glimpses of the sea, prepares visitors for the contemplative atmosphere of the summit.

Once inside Reikadō Hall, the flickering light of the flame casts shadows on wooden beams darkened by centuries of smoke. The simplicity of the space contrasts with the profound significance of what it contains. For many, the experience is less about spectacle and more about reflection—a moment to consider the passage of time and the endurance of human belief.

The eternal flame of Mount Misen is more than a historical curiosity; it is a living tradition that encapsulates over a millennium of Japanese spiritual life. From its origins in Kūkai’s ascetic practices to its role in modern symbols of peace, Kiezu-no-hi continues to inspire awe and contemplation.

In an age defined by rapid change, the quiet persistence of this flame offers a powerful reminder: some traditions endure not because they resist change, but because they are continually renewed by those who believe in their meaning.

Bibliographical References

Reader, Ian. Making Pilgrimages: Meaning and Practice in Shikoku. University of Hawaii Press, 2005. ISBN: 9780824828783

Grapard, Allan G. The Protocol of the Gods: A Study of the Kasuga Cult in Japanese History. University of California Press, 1992. ISBN: 9780520073272

Kitagawa, Joseph M. On Understanding Japanese Religion. Princeton University Press, 1987. ISBN: 9780691102290