What Is the Kongobuji Temple Ajikando?

The Kongobuji Temple Ajikando (金剛峯寺阿字観堂, Kongōbu-ji Ajikandō), also called the Ajikan Dojo, is a 1967 meditation hall on the west side of Kongobuji on Mount Koya in Koya Town, Wakayama Prefecture, and it was registered as a Registered Tangible Cultural Property on March 13, 2025.

Ajikan is the Shingon esoteric practice of meditating on the Sanskrit letter A, written in Siddham script and understood as the source of all things. The hall was built at the wish, and with the donation, of Nakai Ryuzui, the 401st chief abbot of Kongobuji. It was designed and built by Tsujimoto Kiji, a temple carpenter from Koyasan.

The Agency for Cultural Affairs calls it the only Ajikan hall on Koyasan. It stands northwest of the Reception Room, along the north edge of the reception precinct, facing south over the rock garden.

Why the Kongobuji Ajikando Was Registered

It was registered as a model of architectural form. The hall is seven bays long and three bays deep, with a copper-clad Kirizuma-zukuri gable roof and its entrance on the long side, surrounded by a veranda. It is a single-storey timber building with a building area of 89 m².

At the center is a hall with a raigo wall at the back bearing the letter A. On each side are two cells of about six mats, four in all. According to the Agency, the plan was worked out with reference to ancient monks' dormitories such as the West Dormitory at Horyuji.

Kongobuji adds that the hall skillfully draws on pre-modern building styles and shows the sure skills of Koyasan's craftsmen. Though built in the late 1960s, the Kongobuji Temple Ajikando reuses the form of an ancient dormitory for meditation.

Highlights of the Kongobuji Temple Ajikando

From outside, the hall presents its seven-bay long side to the garden, a low, horizontal building under one straight gable roof with a veranda all round. The even spacing of the posts hints at the row of equal rooms inside, just as in an ancient dormitory.

Inside, everything turns toward the letter A on the raigo wall. Participants sit in the central hall facing it and settle their breathing. With two cells on either side, the plan is symmetrical and draws the eye to the single letter at the center.

The Agency's second record photograph shows a room labeled the kodenshitsu, a room for passing on teaching, which underlines the hall's role in handing down the practice.

Visiting the Kongobuji Temple Ajikando

The Kongobuji Temple Ajikando is not open to general visitors, but you can enter it by joining the short Ajikan meditation session that Kongobuji runs. In 2026 the sessions are held from April to November, mainly on Fridays, Saturdays, Sundays and national holidays.

There are four sessions a day, at 9:00 a.m., 11:00 a.m., 1:30 p.m. and 3:30 p.m., each lasting about an hour with a limit of 14 people. The fee is 1,000 yen (elementary school age and up), plus Kongobuji admission. Instruction is in Japanese only, but an English text is provided.

Sign up on the day at the sales counter in the Annex after paying admission, on tablets at the Koyasan Shukubo Association information centers, or on the dedicated booking site. Photography is not permitted inside the hall.

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Q&A

QCan I go inside the Kongobuji Temple Ajikando?
AIt is not open to general visitors, but participants in Kongobuji's short Ajikan meditation session meditate inside the hall.
QWhen is the Ajikan session held at the Kongobuji Ajikando?
AIn 2026, from April to November, mainly on Fridays, Saturdays, Sundays and holidays, at 9:00 a.m., 11:00 a.m., 1:30 p.m. and 3:30 p.m.
QHow much does the Ajikan session at the Kongobuji Temple Ajikando cost?
A1,000 yen per person (elementary school age and up), plus Kongobuji admission.
QWhen was the Kongobuji Ajikando registered?
AIt was registered as a Registered Tangible Cultural Property on March 13, 2025. It was built in 1967.
QWho built the Kongobuji Temple Ajikando?
AIt was founded by Nakai Ryuzui, the 401st chief abbot, and designed and built by the Koyasan temple carpenter Tsujimoto Kiji.

Basic Information

NameKongobuji Temple Ajikando
Location136 Honchuindani, Koyasan, Koya Town, Ito District, Wakayama Prefecture
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered March 13, 2025 (Reiwa 7)
Quantity1 building
DimensionsBuilding area 89 m² (single-storey timber, copper roof)
OwnerKongobuji Temple (religious corporation)
Public AccessClosed to general visitors; open to Ajikan session participants

References

Agency for Cultural Affairs, Database of National Cultural Properties: Kongobuji Ajikando
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00015361
Agency for Cultural Affairs, Council recommendation on registered buildings (November 22, 2024)
https://www.bunka.go.jp/koho_hodo_oshirase/hodohappyo/pdf/94136901_01.pdf
Kongobuji: Nine Kongobuji buildings to be registered (2024)
https://www.koyasan.or.jp/sp/news/2024/11/22/6687/
Kongobuji: Highlights within the temple
https://www.koyasan.or.jp/kongobuji/jinai.html
Kongobuji: Experiences on Koyasan
https://www.koyasan.or.jp/experience/
Kongobuji: Admission fees
https://www.koyasan.or.jp/kongobuji/charges/
Kongobuji: Visitor guidance
https://www.koyasan.or.jp/guidance/

Last verified: 2026.09.23