Temple Name
Byodoji
The temple is said to have been named Byodoji after Yakushi Nyorai's vow to heal the suffering of all people equally, without distinction.
Learn About Byodoji
According to tradition, Kobo Daishi Kukai founded Byodoji in 814 and named it after Yakushi Nyorai's vow to heal the suffering of all people equally. After war left its halls in ruins, Shōshun Hōin and others rebuilt them in the Edo period, and successive chief priests have cared for the temple ever since. Today the temple is repairing its halls and cultural properties toward 2034, when the Goonki memorial will mark 1,200 years since Kobo Daishi entered eternal meditation.

Founding tradition
The Byodoji Origin Record tells that a golden lotus cast by Kobo Daishi caught on an old pine, and that a lapis-lazuli syllable vaṃ took the form of Yakushi Nyorai. The temple is said to have been named after Yakushi Nyorai's vow.
「我衆生の苦を醫し去ること平等不偏なるべきぞ」
In the middle of the third month of 814, Kobo Daishi Kukai came to this land in search of a place to found a temple. He climbed the mountain and cast a golden lotus, saying, "If this land is fit for spreading the esoteric teachings, show me a sign." The lotus caught on the branch of an old pine and shone in all directions.
As the Daishi continued in meditation, a lapis-lazuli syllable vaṃ (Japanese: ban) appeared and then took the form of Yakushi Nyorai. It is said that the Daishi himself carved Yakushi Nyorai, Nikkō Bosatsu, Gakkō Bosatsu, and the Twelve Divine Generals, bowing three times with every stroke of the chisel (ittō sanrai), and built the temple halls.
Yakushi Nyorai is said to have vowed to heal the suffering of all people equally, without distinction. The temple is said to have been named Byodoji, "Temple of Equality," after this vow.
Origins preserved in the names
Byodoji's temple name is Byodoji, its mountain name is Hakusuizan, and it has two cloister names, Iō-in and Nikkō-in.
Temple Name
The temple is said to have been named Byodoji after Yakushi Nyorai's vow to heal the suffering of all people equally, without distinction.
Mountain Name
It is said that when Kobo Daishi bored into a rock with his tokko (a single-pointed vajra used in esoteric Buddhism), water as white as milk sprang forth. This sacred water gave the temple its mountain name, Hakusuizan, "White Water Mountain." The water still flows in the temple grounds today as Kobo's Sacred Water.
Cloister Name
This cloister name comes from Iō Zenzei, "King of Physicians," another name for Yakushi Nyorai, the principal image of the main hall. Today Byodoji uses two cloister names, Iō-in and Nikkō-in.
Cloister Name
The Byodoji Origin Record tells that sunlight reflected in the morning's blessed water lit the inside of the temple. That light was revered as the form of the Eleven-Faced Kannon, who was then enshrined as the principal image of the hōjō, the chief priest's quarters. This is the origin of the cloister name Nikkō-in, "Cloister of Sunlight."
Timeline
This timeline traces the temple's history since its founding, drawing on the Byodoji Origin Record and on records kept at the temple and elsewhere.
814
The Byodoji Origin Record tells that Kobo Daishi carved and enshrined Yakushi Nyorai and founded the temple.
Nanboku-chō period
In the Nanboku-chō period, the chief priests of Byodoji served as Kumano sendatsu, guides who led people on pilgrimage to the three great shrines of Kumano.
Age of war
Through the wars of the late Muromachi and Sengoku periods, Byodoji declined and its halls in the mountains fell into ruin. The Byodoji Origin Record tells that Chōsokabe Motochika heard the voices of prayer, got down from his horse, and bowed. It also states that the story of Motochika burning the temple is mistaken.
Early Edo period
In 1677, Shōshun Hōin saw the ruined grounds and resolved to restore the temple.
The rebuilding begun by Shōshun Hōin was carried on by successive chief priests, and the present main hall was built.
Late Edo period
The chief priests who carried on the rebuilding prepared the Daishi Hall and the goma hall and began regular goma and sutra recitation. They revived the public opening of Yakushi Nyorai and also printed books from woodblocks.
Bunsei era
In the Bunsei era, the Daishi Hall was built anew, and a set of the Great Perfection of Wisdom Sutra was prepared at the wish of the faithful.
Meiji period
In the Meiji period, along with work on the temple halls, a bridge, a water basin, and other things were built for local people and pilgrims.
Modern era
Taniguchi Shinryō was the last chief priest to add his writing to the Byodoji Origin Record, which successive chief priests had written in turn. After the war, he rebuilt the main gate and the bell tower and restored the neglected grounds.
Local people affectionately called the chief priest "Inge-san."
Present day
While repairs to the grounds continued, the temple began a 24-hour livestream of the main hall in 2020, so that people far away can also pay their respects.
Toward 2034, when the Goonki memorial will mark 1,200 years since Kobo Daishi entered eternal meditation, the temple is repairing its halls and cultural properties.
2034
In Shingon Buddhism, Kobo Daishi is revered as remaining in meditation at Okunoin on Mount Koya to this day. The year 2034 marks 1,200 years since he entered this meditation, and the Goonki, a great memorial service of gratitude, will be observed. Byodoji is repairing its halls and cultural properties toward this milestone.
Along with the repairs, we will pass on prayer to Yakushi Nyorai and the observances of goma and the public opening of the principal image to those who will visit in the years ahead. We will also keep telling the stories handed down in this area.
A dedicated page explains the precinct and cultural-property restoration plan for the memorial, along with ways to support it.
We will carry out the repairs one by one, so that people can continue to join their hands in prayer at Byodoji.
Gassho
Read more about the founding tradition, accounts of Yakushi Nyorai’s blessings, and devotion to the principal image.
Read the temple's own Byodoji Origin Record, with notes, a modern translation, and the original text.
ReadThe story of a son who could no longer walk and the father who built a hakoguruma and set out on pilgrimage with him, told from the records kept at Byodoji.
ReadThe founding tradition, the twelve great vows, and the prayers that continue today around Yakushi Nyorai, the principal image of Byodoji.
Read