Buddhism in Japan: history, schools and everyday life

Buddhism reached Japan in the sixth century and shaped its architecture, art, festivals and its way of dealing with death. Today most Japanese do not formally belong to a temple, yet funerals, Obon and the household altar remain Buddhist. This article explains the history, the main schools and the numbers behind everyday practice.

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What Buddhism teaches

Buddhism began in India in the fifth century BCE with the teachings of Siddhartha Gautama, later revered as the Buddha. Its core is suffering, its causes and a path to end it. Whoever leaves the cycle of rebirth, samsara, reaches nirvana, the end of suffering.

The form that reached Japan was Mahayana Buddhism. It emphasises compassion and the possibility of helping others on the path to awakening. From it grew many Japanese schools with their own texts, rituals and holy figures.

How Buddhism arrived in Japan

According to the Nihon Shoki, the king of Baekje sent a Buddha statue and sutras to the Japanese court in 552. Other sources give 538. Both dates are considered uncertain, but scholars agree that Buddhism arrived in the middle of the sixth century through official contacts.

At first the Soga and Mononobe clans fought over the new religion. The Soga victory opened the way for temples. Prince Shōtoku promoted Buddhism in the seventh century and is still seen as one of its founding figures. The first great monasteries appeared in the Asuka period.

The Nara and Heian periods

In the Nara period, from 710 to 794, the state took the temples under its protection. Six schools shaped the capital: Jōjitsu, Hossō, Sanron, Kegon, Ritsu and Kusha. The great Buddha of Nara, the Daibutsu, shows how closely religion and state were linked.

In the Heian period, from 794, two monks brought new teachings from China. Saichō founded the Tendai school and Kūkai the Shingon school. Both emphasised ritual and esoteric practice, and their monasteries on Mount Hiei and Mount Kōya became centres of power.

The new schools of the Kamakura period

Between 1185 and 1333 new schools appeared that still define most Japanese Buddhism. Hōnen taught trust in Amida through the nembutsu, and Shinran built the Jōdo Shinshū from it. Nichiren put the Lotus Sutra and the daimoku at the centre.

Zen also arrived in this period. Eisai brought the Rinzai school from China and Dōgen founded Sōtō. Both emphasise zazen, seated meditation, though they differ in style and doctrine.

The Edo period and the danka system

In the Edo period, from 1603 to 1868, the state tied the population to Buddhist temples. The danka system required every family to register with a temple. The temple handled funerals and memorial rites, and priests kept the registers.

Buddhism thus became the institution of death and ancestor veneration. The price was a close bond with the state, which became a problem after 1868.

The Meiji period: separating Shinto and Buddhism

In 1868 the Meiji government ordered the separation of Shinto and Buddhism, shinbutsu bunri. A purified Shinto was declared the state religion. The result was a wave of temple destruction, haibutsu kishaku.

Estimates suggest around 40,000 temples were destroyed, in some regions up to 80 percent. The most violent years were 1869 to 1871. Only later did the state give Buddhism a role again.

Buddhism in the twentieth century

From the Meiji era until 1945 the state promoted Shinto as the basis of national identity. After the defeat, the new constitution guaranteed religious freedom and Buddhism lost its official position.

In the postwar years new religious movements grew, including Sōka Gakkai, which draws on Nichiren Buddhism. Many Japanese now practise only on special occasions.

Buddhism today: numbers, practice and criticism

The numbers depend on whom you ask. In 2023 the Agency for Cultural Affairs counted 129 million believers in recognised religious bodies, of which 46 million were Buddhists. The largest groups were Jōdo with 22 million and Nichiren with 10 million.

Surveys differ. The Pew Research Center estimated in 2010 that 36.2 percent of the population practised Buddhism. The Japanese General Social Survey found less than 20 percent in 2017, and in 2013 about 70 percent said they followed no religion.

The contradiction comes from counting methods: temples count every family member, surveys count personal belief. Japan has around 75,000 Buddhist temples and more than 300,000 Buddha statues. About 60 percent of families own a butsudan, a Buddhist household altar.

In daily life, Buddhist traces appear mainly around death. Funerals and memorial rites usually follow Buddhist forms, and a temple priest accompanies the family for years. During Obon in summer the ancestors return home and many families visit the graves.

Critics therefore speak of sōshiki bukkyō, a Buddhism of funerals. Congregations are ageing, many temples cannot find a successor and ties to the temple are weakening. At the same time, priests try to reach people again with meditation, counselling and new offers.

Conclusion

Buddhism has shaped Japan for more than 1,400 years: in architecture, art, festivals and the treatment of the dead. Today it is no mass religion, but a cultural heritage and, for many families, a practical framework for mourning and remembrance.

Read more: the Asuka period and its art, religions in Japan, Shintoism in Japan, the kamidana household altar and the meaning of torii gates.