Oomoto Mirokuden: A Vast Sacred Hall of Postwar Renewal in the Hills of Ayabe
Tucked into the wooded foothills of Mt. Hongu on the banks of the Yura River, Oomoto Mirokuden (大本みろく殿), also rendered in English as the "Hall of Supreme Love and Compassion," is one of the most quietly astonishing buildings in northern Kyoto Prefecture. Step through its tall glass doors and you enter a single open hall of 789 tatami mats—a space so wide that not a single supporting pillar interrupts the view of its coffered ceiling. Yet what makes the hall remarkable is not only its scale. It is a building of rebirth, completed in 1953 on the very ground where an earlier hall had been demolished during one of the most severe acts of religious suppression in modern Japanese history.
For travelers searching for a Kyoto beyond Kiyomizu and Arashiyama, Mirokuden offers something rare: an enormous twentieth-century sanctuary at the heart of a living religious community, surrounded by gardens, festival traditions, and an air of quiet welcome.
Where the Hall Stands: Baishoen and the Origins of Oomoto
Mirokuden sits within Baishoen (梅松苑), the Ayabe Spiritual Center of the religion known as Oomoto (大本). Oomoto Baisho-en is located along the banks of the Yura River that runs through Ayabe City. It is the home of the religious organization "Omoto Baisho-en" and was opened in 1892. The faith was founded by Deguchi Nao, a working-class woman in Ayabe, and developed under her son-in-law Deguchi Onisaburo into one of modern Japan's most distinctive Shinto-rooted religions—one that emphasizes the unity of all religions, the cultivation of the arts as spiritual practice, and the coming of a peaceful age called miroku no yo, the "age of Miroku."
The name Mirokuden literally means "Hall of Miroku," referring to this future age of universal peace. The grounds around the hall, sometimes called "Plum and Pine Garden," include a stroll garden centered on the Kinryukai pond, a copse of plum trees that scents the air in early spring, and several other notable buildings including the colossal twentieth-century wooden hall Choseiden and a thatched farmhouse designated a national Important Cultural Property.
A History of Destruction and Rebuilding
An earlier Mirokuden of similar grandeur stood on this site before the Second World War. In December 1935, however, the Japanese state launched a sweeping crackdown on Oomoto that history records as the Second Oomoto Incident. Religious facilities across Ayabe and the sister center in Kameoka were dynamited and demolished. The site of the present hall lay in rubble for nearly two decades.
After the war and the lifting of the suppression, followers gradually returned to rebuild. The present Mirokuden was completed in April 1953, under the direction of the second spiritual leader Deguchi Sumiko. A subsequent renovation followed in 1985. Walking into the hall today, visitors stand inside a building whose very existence is testimony to a religious community's quiet persistence after extraordinary hardship—a story the building's calm proportions seem to express without raising its voice.
Why Mirokuden Was Designated a Registered Tangible Cultural Property
On 25 April 2014, the Agency for Cultural Affairs registered Oomoto Mirokuden as a Registered Tangible Cultural Property (Building) of Japan. The designation reflects a combination of architectural ambition and historical significance that is unusual even among twentieth-century religious buildings.
The Agency's official summary describes the structure as a "shrine of grand scale" measuring over fifty meters along its main beam-line, in the gable-entry irimoya style with a surrounding pent roof (mokoshi). On the west side stands an irimoya entrance porch with a frontage of about ten meters, and on the east side an additional gabled sanctuary projects outward, layering yet another irimoya roof. The principal frame is steel, but it is dressed in cypress woodwork so that the eye reads it as a wholly traditional Japanese wooden hall—a hybrid technique that allowed the hall to span its vast open interior without forests of internal pillars.
This blending of postwar engineering with classical Japanese architectural vocabulary is precisely what places Mirokuden in the cultural canon. It is a record of how mid-twentieth-century Japan reconciled modern materials with deeply traditional religious form, and it remains one of the largest sanctuaries of its generation anywhere in the country.
Highlights: What to Look For When You Visit
The 789-Tatami Hall
The first impression upon entering is simply the scale. The interior is sometimes called the senjojiki, the "thousand-mat hall," though the actual count is 789 mats. The coffered ceiling stretches uninterrupted overhead, and the absence of internal pillars produces a stillness that feels almost outdoor in its breadth.
Hand-Blown Glass from 1953
Three sides of the hall are lined with tall glass-paneled sliding doors. Many of these still contain the original hand-blown glass panes from 1953—an everyday detail that quietly preserves the craftsmanship of postwar Japan. When sunlight passes through them, the faint ripples in the glass become visible against the cypress mullions.
The Layered Copper Roof
Seen from the garden, the building's most dramatic feature is its roof: steeply pitched and clad in copper shingles, designed to shed the heavy snows of northern Kyoto. The double layering of the irimoya main roof above the pent roof gives the hall a profile that is at once monumental and serene.
The Surrounding Gardens
Just in front of the hall lies Kinryukai, a stroll-style pond garden first laid out in the Taishō era, filled in during the wartime suppression, and restored when Mirokuden was rebuilt. Maples that line the pond turn brilliant in autumn, and irises bloom along the water channels in May.
Festivals at Mirokuden
The hall remains in active religious use. Although the very largest ceremonies moved to Choseiden when that hall was completed in 1992, Mirokuden continues to host services, ancestral commemorations, and prayers for the victims of war and disaster around the world. Visitors who time their trip to coincide with a festival will see the hall at its most alive.
- Setsubun Grand Festival (early February): an all-night purification rite during which paper effigies bearing the names of supplicants from across Japan and overseas are later released into the Yura River.
- Miroku Grand Festival (5 May): the spring grand ceremony, dedicated to the coming of the age of universal peace.
- Founder's Grand Festival (first Sunday of November): the autumn grand ceremony, observed together with a new-harvest thanksgiving.
- Monthly service: held on the first Sunday of every month.
Around Mirokuden: What Else to See in Baishoen and Ayabe
A short walk from Mirokuden brings you to Choseiden, completed in 1992 and often described as one of the largest wooden religious buildings constructed in the twentieth century. Built using cypress timbers reportedly more than three centuries old, it is open for interior viewing by advance reservation.
Also within the grounds is Konohanaan, originally the Okahana family farmhouse from the mid-1600s and relocated here in 1971. It is one of the oldest surviving farmhouses in the Tamba region and is designated a national Important Cultural Property.
Outside Baishoen, the city of Ayabe rewards a slower visit. Gunze Square, on the site of the founding factory of the silk and apparel maker Gunze, includes a rose garden and a small museum on the history of silk in Ayabe. Mt. Hongu behind the spiritual center rises in a gentle forested slope, and from various points along the Yura River you can see why this quiet valley became, for the founders of Oomoto, a landscape suggestive of the sacred.
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Q&A
- Can visitors of any religion enter Mirokuden?
- Yes. The grounds of Baishoen are open to general visitors, and respectful guests of any background are welcome to view Mirokuden. Quiet conduct appropriate to a sanctuary is expected. Some areas of the wider precinct are restricted as sacred ground.
- Is there an admission fee?
- No. Visiting the grounds is free of charge. Viewing the interior of certain buildings may require an advance reservation; it is worth contacting Baishoen ahead of your visit if you wish to enter Choseiden or Konohanaan.
- When is the best season to come?
- The grounds have something to offer year-round, but May—when the spring grand festival is held and irises bloom in the garden—and mid-November, when autumn maples around Kinryukai are at their height, are particularly memorable.
- How does Mirokuden relate to the larger Choseiden?
- Mirokuden served as Baishoen's principal sanctuary from 1953 until 1992, when the much larger Choseiden was completed nearby. Major ceremonies are now held in Choseiden, but Mirokuden remains in active religious use, particularly for ancestral and memorial services.
- How do I get to Mirokuden from Kyoto?
- Take the JR San'in Line limited express from Kyoto Station to Ayabe Station (roughly one hour). From Ayabe Station, Baishoen is about a 15-minute walk, or a short local bus ride on the Aya Bus to the "Oomoto Shin'en-mae" stop.
Basic Information
| Name | Oomoto Mirokuden (大本みろく殿) |
|---|---|
| Designation | Registered Tangible Cultural Property of Japan (Building), registered 25 April 2014 |
| Address | 1 Hongu-shimo, Hongu-cho, Ayabe-shi, Kyoto 623-0023 |
| Completed | April 1953 (Showa 28); renovation 1985 |
| Owner | The religious corporation Oomoto |
| Structure | Steel frame and partial wooden construction, one story with partial basement, copper-shingled roof |
| Architectural style | Irimoya-zukuri, gable-entry, with surrounding pent roof (mokoshi) |
| Building area | Approximately 1,950 m² |
| Interior | Single open hall of 789 tatami mats, coffered ceiling, hand-blown glass panes from 1953 |
| Access | Approximately 15 minutes on foot from JR Ayabe Station on the San'in Line; or Aya Bus to "Oomoto Shin'en-mae" |
| Hours | Grounds generally accessible 9:30–16:30; interior viewing of associated halls by reservation |
| Admission | Free |
References
- 大本みろく殿 - 文化遺産オンライン (Agency for Cultural Affairs, Cultural Heritage Online)
- https://bunka.nii.ac.jp/heritages/detail/275063
- Baishoen (Oomoto Ayabe Spiritual Center) – Japan Tourism Agency Multilingual Database
- https://www.mlit.go.jp/tagengo-db/en/R2-01541.html
- Omoto Headquarters (Ayabe/Baishoen) – Another Kyoto Official Travel Guide
- https://www.kyototourism.org/en/sightseeing/514/
- Oomoto Spiritual Centers – Official Oomoto website (English)
- https://www.oomoto.or.jp/English/enSeic/seicm-en.html
- 綾部・梅松苑（大本）– 京都府観光連盟公式サイト
- https://www.kyoto-kankou.or.jp/info_search/550
- 大本梅松苑“金龍海” – 庭園情報メディア「おにわさん」
- https://oniwa.garden/ohmoto-baishoen-kyoto/
Last verified: 2026.05.11