Why Does Japan Have Both Shrines and Temples?

A Short History of Kami, Buddhism and Religious Life in Japan

When travelling around Japan, you will see shrines and temples almost everywhere.

Not only in ancient cities such as Kyoto and Nara, but also between office buildings in Tokyo, in quiet residential areas, beside the sea, and deep in the mountains.

Visitors from overseas often wonder:

“What is the difference between a shrine and a temple?”

In simple terms, shrines are associated with Japan’s indigenous traditions of worshipping kami, while temples belong to Buddhism.

Yet if you ask many Japanese people whether they are Shinto or Buddhist, they may not feel a strong need to choose one or the other.

At New Year, people may visit a shrine for hatsumōde, the first shrine visit of the year. They may also visit Buddhist temples. A wedding may be held in the Shinto style, while a funeral is often Buddhist. When travelling, people may stop at a beautiful shrine, pray there, and then visit an old Buddhist temple later the same day without feeling that there is any contradiction.

Why is that?

To understand it, we need to go back around 1,500 years.

Before Buddhism Came to Japan

Long before Buddhism reached Japan, people in the Japanese islands worshipped many different kami.

These kami could be associated with mountains, rivers, seas, rocks, trees, natural forces, particular places and ancestors.

However, it would be misleading to imagine that people at that time already followed “Shinto” as a single, clearly organised religion in the modern sense.

There was no single founder, no one sacred scripture comparable to the Bible, and no universally standardised system of belief.

Different regions and powerful clans had their own rituals, sacred places and ancestral traditions. Leading clans often worshipped kami connected with their lineage, land or political authority.

In other words, early Japanese religious life was closely tied to nature, place, ancestry and community.

Then Buddhism Arrived

A major change took place in the 6th century.

Buddhism was formally introduced to the Yamato court from the Korean kingdom of Baekje.

According to the Nihon Shoki, or Chronicles of Japan, King Seong of Baekje sent a Buddhist image and scriptures to Emperor Kinmei. There is a long-standing debate over the exact year, with 538 and 552 both traditionally given, but the more important point is that Buddhism did not arrive in isolation.

From the perspective of Japan at that time, China and the Korean Peninsula represented highly developed centres of civilisation.

Buddhism came together with knowledge and technologies connected with temple construction, roof tiles, sculpture, painting, metalwork, writing, scholarship and administration.

So Buddhism was not only a new religion. It was also part of what we might call the most advanced international culture available to Japan at the time.

One powerful clan that strongly supported Buddhism was the Soga.

Other leading groups, especially the Mononobe and Nakatomi, were more cautious or opposed to its introduction. Their disagreement was not only about religion. It was also closely connected with political rivalry between powerful clans.

Over time, the Soga became politically dominant, and the Yamato court gradually came to support Buddhism more actively.

Why Was Buddhism So Important for a Developing State?

To understand this period, we need to look beyond Japan and consider the wider world of East Asia.

At the end of the 6th century, China was reunited under the Sui dynasty after centuries of political division.

China was the great political and cultural centre of East Asia, and the emperor was regarded as the Son of Heaven, or Tianzi.

A wider diplomatic system had developed in which neighbouring rulers sent envoys and tribute to Chinese courts and, in return, could receive titles, gifts and official recognition.

It is too simple to describe all of this as China merely treating surrounding countries as subjects. Neighbouring states also used diplomatic relations with China for trade, legitimacy, security and political advantage.

Japan, known in Chinese sources at the time as Wa, had been involved in relations with Chinese dynasties for centuries.

Much earlier, the famous Queen Himiko, described in Chinese historical records, sent envoys to the state of Wei and received the title “Queen of Wa Friendly to Wei”.

But by the time of Empress Suiko, Prince Shōtoku, also known as Prince Umayado, and Soga no Umako, something very interesting was happening.

Japan was sending official missions to the Sui dynasty.

One of the most famous episodes appears in the Chinese Book of Sui.

It records a letter from the ruler of Wa beginning with words commonly translated as:

“From the Son of Heaven in the land where the sun rises to the Son of Heaven in the land where the sun sets.”

The exact authorship of this letter should be treated with some caution, and it should not simply be assumed that Prince Shōtoku personally wrote it. But the important point is the language used.

In the Chinese political worldview, the Chinese emperor was the Son of Heaven.

Yet the ruler of Wa also used the title “Son of Heaven”.

The Sui emperor Yang was reportedly displeased.

This episode reveals something important about Japan’s changing position.

Japan wanted to learn from Chinese civilisation, but it did not simply want to become part of China’s political order.

It was beginning to define itself as an independent state.

That is one of the most fascinating features of early Japanese history.

Japan was willing to adopt ideas, technologies and institutions from the continent, while at the same time trying to establish its own political identity.

Buddhism and the Building of a New State

Seen in this wider context, Buddhism becomes much more than simply a new religion introduced from abroad.

The traditional worship of kami was strongly connected with particular clans, places and ancestral traditions.

Buddhism, by contrast, was a religious and intellectual system that had travelled from India through Central Asia, China and the Korean Peninsula before reaching Japan.

It was not tied to one Japanese clan or one Japanese region.

It had a more universal character.

For a court that was gradually trying to build a stronger and more centralised state, this wider religious and intellectual framework had obvious importance.

Buddhism was also closely connected with writing, learning, architecture, art and international civilisation.

Adopting Buddhism therefore meant far more than accepting a new object of worship.

It meant participating in the cultural world of East Asia.

From the age of Prince Shōtoku onwards, the Japanese court increasingly supported Buddhism, built temples and studied political and cultural systems from China and the Korean Peninsula.

Then, in the 7th century, events on the Korean Peninsula gave Japan an even stronger reason to reform.

In 663, Japanese forces supporting the restoration of Baekje were defeated by the combined forces of Tang China and Silla at the Battle of Baekgang.

For the Japanese court, this was a serious shock.

A powerful Tang empire and an increasingly unified Silla were just across the sea.

Japan therefore had strong reasons to strengthen central government, administration, military organisation and political institutions.

Through the reigns of rulers such as Emperor Tenmu and Empress Jitō, the state continued to develop systems of law, administration, court ritual, taxation, government offices and capital cities.

The compilation of national history and mythology also became increasingly important.

This eventually led to the completion of the Kojiki in 712 and the Nihon Shoki in 720.

These works organised traditions about the kami, the imperial line and the origins of major clans into a larger story of the Japanese state.

In this sense, the spread of Buddhism in Japan cannot be separated from the history of state formation.

It was part of a much larger transformation in which a society of powerful clans was gradually developing into a more centralised political order while absorbing ideas, technologies and institutions from the Asian continent.

What Happened to the Older Kami?

This is where the story becomes especially interesting.

When Buddhism became established in Japan, the older kami were not simply abandoned.

Japan did not develop along the lines of:

“If Buddhism is true, the old kami must be rejected.”

Instead, people continued to worship kami while also accepting Buddhist beliefs and practices.

Over time, the two traditions became increasingly connected.

This development is known as shinbutsu shūgō, usually translated as the syncretism or fusion of kami and Buddhism.

It did not appear fully formed the moment Buddhism arrived.

The relationship developed gradually.

By the Nara period, Buddhist temples were being built near shrines, and Buddhist rituals were sometimes performed for kami.

There were also ideas that kami themselves might benefit from Buddhist teachings.

In later centuries, especially during the Heian period, these connections became even more sophisticated.

A theory known as honji suijaku developed.

According to this way of thinking, Japanese kami could be understood as local manifestations of Buddhist deities or buddhas appearing in forms suitable for the people of Japan.

In other words, rather than asking whether the kami or the Buddha were correct, people increasingly found ways of placing both within the same religious universe.

For many centuries, this became a normal part of Japanese religious life.

Shrines and Temples Were Not Always So Separate

Today, when you visit Japan, shrines and temples often appear clearly distinct.

Shrines usually have torii gates and are associated with kami.

Temples contain Buddhist images, halls and, in many cases, graveyards.

It is therefore easy to assume that they have always existed as completely separate institutions.

Historically, this is not the case.

For more than a thousand years, kami worship and Buddhism often overlapped.

Shrines could have Buddhist buildings, temples could protect local kami, and religious sites could contain elements of both traditions.

The clear separation we see today is partly the result of a much later development.

When the Meiji government came to power in 1868, it introduced policies to separate kami worship and Buddhism.

This is known as shinbutsu bunri, the separation of kami and buddhas.

In the process, institutions and practices that had existed together for centuries were divided.

In some areas, this also contributed to haibutsu kishaku, violent anti-Buddhist movements in which temples, Buddhist statues and religious objects were destroyed or removed.

So the apparent modern distinction between “shrine” and “temple” should not lead us to imagine that the two traditions had always been completely separate.

For much of Japanese history, they were deeply intertwined.

Why Do Japanese People Still Visit Both?

Of course, it would be too simple to explain all modern Japanese attitudes towards religion only through shinbutsu shūgō.

Modern Japanese society has been shaped by many different historical forces, including Buddhism, kami worship, Confucianism, modern secular life and, to a lesser degree, Christianity and other religious traditions.

But the long history of coexistence between kami and Buddhism remains an important part of the background.

Even today, many Japanese people do not see religious practices as necessarily exclusive.

Someone may visit a shrine at New Year, take part in Buddhist memorial ceremonies, attend a Christian-style wedding ceremony, and enjoy Christmas without feeling that these activities create a serious religious contradiction.

For people raised in religious cultures centred on exclusive belief in one God, such as Christianity or Islam, this can sometimes seem unusual.

But Japanese religious history developed in a different way.

For long periods, different traditions were not always treated as mutually exclusive.

They were often allowed to coexist, influence each other and eventually become part of the same cultural world.

This does not mean that Japanese history was always religiously tolerant.

There were conflicts over Buddhism in the ancient period, struggles between religious institutions in the medieval period, persecution of Christians in the early modern period, and violent anti-Buddhist movements during the Meiji Restoration.

So it would be misleading simply to say that Japanese people have always been naturally tolerant of religion.

A better way to understand it is this:

Japan has a long history of absorbing outside ideas without necessarily discarding what already existed. New beliefs and traditions were often adapted, combined with older ones, and gradually transformed into something distinctively Japanese.

The relationship between Buddhism and the kami is one of the clearest examples of this process.

The next time you visit a shrine or temple in Japan, it may be worth looking a little more closely.

The torii gate, the Buddhist image, the old tree, the mountain behind the shrine, the name of the temple, the local festival and the legends attached to the place may all belong to different historical layers.

What now appears to be a simple distinction between “shrine” and “temple” is actually the result of more than a thousand years of encounter, coexistence, fusion, separation and reinterpretation.

And that long history still helps explain why religion in Japan often feels less like a matter of choosing one tradition over another, and more like a cultural landscape in which several traditions can exist side by side.