Explore how Japanese hot springs became linked with faith through origin legends, animal discovery tales, Yakushi Nyorai worship, hot spring shrines, yutate rituals, and Shugendo, presented neutrally.
Published: Jun 28, 2026
Explore how Japanese hot springs became linked with faith through origin legends, animal discovery tales, Yakushi Nyorai worship, hot spring shrines, yutate rituals, and Shugendo, presented neutrally.
Published: Jun 28, 2026
Japanese hot springs have long been closely associated with faith. Water bubbling up from the ground was a blessing that defied natural explanation, and in many regions its discovery and benefits were handed down through stories connected to gods, Buddhas, and sacred figures. The fact that shrines and temples remain in hot spring areas, and that places across Japan bear names such as "hot spring shrine" and "hot spring temple," is a lingering trace of this connection.
To put the conclusion first, the relationship between hot springs and faith can be organized into three main forms. First are origin legends, which link the discovery of a hot spring to a great monk, a deity, or even an animal. Second is belief in the spring itself or the hot spring area as being under divine protection, such as Yakushi Nyorai worship and hot spring shrines. Third are rituals like yutate, in which prayers are offered using hot water. This article neutrally organizes the connection between hot springs and faith around these three themes.
Many of the origin legends and discovery tales discussed here are not historically verified facts, but local traditions passed down from place to place. In many cases, there are several different accounts regarding the people and dates involved. Rather than promoting or rejecting any particular religion, this article describes faith as an object of belief and as a cultural tradition, from a neutral standpoint. For more on the therapeutic culture of hot springs themselves, see What Is Toji?, and for the historical flow of bathing culture, see The History of Bathing Culture.
Origin legends are stories that tell when, by whom, and how a certain hot spring was discovered. Many hot spring areas preserve such stories of discovery. Springs that bubble up from the ground have long attracted people’s attention, and as their origins were passed down, beings such as gods, Buddhas, monks, and animals came to appear as the bearers of those stories.
What is important to note is that many origin legends are not historical records, but accounts of pedigree and origin shaped in later times. Even within the same hot spring area, multiple traditions may remain, and the supposed discoverer or date is often inconsistent. Accordingly, this article treats origin legends as stories of origin that the hot spring area has cherished, without determining whether they are fact or fiction.
Origin legends generally fall into several typical patterns. Broadly speaking, they can be grouped into those in which a famous monk is said to have discovered or opened the spring, those in which a person discovered the spring after seeing an injured animal healing in the water, and those in which the spring is said to have been revealed through a divine oracle or manifestation.
| Type | Content of the Legend | Notes |
|---|---|---|
| Discovery by a great monk | Famous monks such as Gyoki or Kobo Daishi (Kukai) are said to have found the spring during their travels, or caused it to gush forth | Widely found across Japan. Often understood as a way of giving prestige to a hot spring area by associating it with a renowned monk, and cannot be confirmed as historical fact |
| Discovery by an animal | People supposedly learned of the spring after seeing cranes, herons, white herons, bears, deer, and other animals healing their injuries in the water | Traces remain in names such as "Heron Spring" and "Crane Spring." This type of discovery tale is found nationwide |
| Divine manifestation | The spring is said to have been found or protected through an oracle or manifestation of Yakushi Nyorai or a Gongen deity | Linked to the origins of hot spring shrines and hot spring temples. Strongly characterized as an object of faith |
Names that appear repeatedly in origin legends are those of the Nara-period monk Gyoki and the Heian-period monk Kobo Daishi (Kukai). In many places there are traditions saying, "Gyoki opened this spring" or "hot water gushed where Kobo Daishi struck the ground with his staff." The reason the same names appear so widely is thought to be that people sought to lend authority to a hot spring area’s origin by connecting it with the name of a famous monk.
For that reason, these legends cannot simply be treated as historical fact. In many hot spring areas, similar legends remain even where there is no solid record that Gyoki or Kobo Daishi actually visited the place. It is more appropriate to regard them as a nationwide pattern of "discovery by a great monk" that has been shared and told from place to place.
Another widely seen type is the discovery tale in which people learned of the spring’s benefits after seeing an injured animal healing its wounds in hot water. In addition to birds such as cranes, herons, and white herons, bears and deer also appear in these stories. Names related to animals, such as "Heron Spring" and "Crane Spring," are sometimes preserved in hot spring areas or at source springs, and such names are often linked to this kind of legend.
Like the monk legends, animal discovery tales are not unique to a particular hot spring area but are a pattern found widely across Japan. The idea that an animal of nature, rather than a human, first discovered the spring’s benefits suggests a sense of respect for hot springs as a blessing of nature. Here too, the point is not to assert the benefits as fact, but to understand the structure of the tradition itself.
The connection between hot springs and faith is not limited to stories of discovery. The spring water itself, and the hot spring area, have been considered under divine protection and treated as objects of worship. Representative examples are Yakushi Nyorai worship and the existence of hot spring shrines.
Yakushi Nyorai is a Buddha widely revered as a savior of human suffering. In hot spring areas, temples and Yakushi halls dedicated to this Buddha are often found. Temples and shrines with names such as "hot spring temple" and "hot spring Gongen" can be found in many places, showing how hot spring water and devotion to Yakushi Nyorai have been layered together. This can be understood as the merging of hope for healing through hot water with faith in a Buddha believed to save people. This article does not argue for or against that faith itself, but describes it neutrally as part of the culture rooted in hot spring areas.
Meanwhile, shrines called hot spring shrines are also enshrined in many places. These express a belief that regards the emergence of hot spring water, or the hot spring area itself, as a deity or as a divine blessing. Shrines have been placed at the entrances or centers of hot spring areas and passed down as places to give thanks for the blessing of hot water and pray for safety. It is not unusual for Yakushi Nyorai worship as a Buddha and hot spring shrines as a deity to coexist in the same hot spring area, revealing the layered influence of long-standing Japanese syncretic faith.
The presence of such temples and shrines shows that hot springs were not merely bathing facilities, but places tied to local faith and daily life. The background to how Japanese people have viewed hot springs as something special is also discussed from a cultural perspective in Why Japanese People Love Hot Springs and Sauna.
The connection between hot springs and faith can also be seen in rituals that use hot water. One such ritual is yutate.
Yutate refers to a ritual performed at shrine grounds or similar places, in which water is boiled in a large cauldron and used in a sacred ceremony. It often includes dipping bamboo grass or ritual paper streamers into the boiled water and sprinkling it over worshippers or the surrounding area. It is performed to pray for good health, protection from misfortune, bountiful harvests, and to divine the fortune or misfortune of the coming year. In some regions it is transmitted as yutate kagura, connected with shrine music and dance.
What should be kept in mind here is that yutate does not necessarily use natural hot spring water. It is a ritual that uses boiled water as a medium for purification and prayer, and it has been practiced at shrines across Japan, not only in hot spring areas. Even so, the idea of treating hot water as sacred and using it in a place of prayer is closely related to the sense of reverence for hot springs as a blessing. It is often discussed in the context of hot springs and faith as an example of the cultural depth in which water can become not just part of daily bathing, but also an object of purification and prayer.
When discussing the relationship between faith and hot springs, the presence of Shugendo should not be overlooked. Shugendo is a practice based on mountain worship, in which practitioners seek spiritual power through entering the mountains and undergoing severe training.
Geothermal areas associated with volcanic activity, and rugged hot spring sites filled with the smell of sulfur, have often been called "hells." In the context of Shugendo, such places that seem to repel ordinary people were sometimes regarded as sacred sites, that is, holy places for training and faith. Rising steam and landscapes unlike ordinary terrain were understood as places where power beyond human understanding could be felt.
In other words, hot spring areas could be places of healing through hot water, and at the same time, through their volcanic terrain, places of faith. The coexistence of two faces in the same hot spring area, a peaceful place for bathing and a sacred site in a rugged geothermal zone, shows the broad scope of the relationship between hot springs and faith. These connections, too, are based on religious beliefs and local traditions passed down region by region, and cannot be explained in a uniform way.
In many cases they are not historically verified facts, but traditions passed down in local areas. Multiple theories may remain within the same hot spring area, and the supposed discoverer and date are not always fixed. Legends of discovery by Gyoki or Kobo Daishi are also widely distributed throughout Japan, and it is reasonable to understand them as a pattern that associates the name of a great monk with the origin story. This article does not determine whether they are fact or fiction.
It is thought that connecting the names of famous monks to the origin of a hot spring was a way to lend authority to the status and pedigree of that hot spring area. As a result, similar legends remain in many places even where there is no record that those monks actually visited, and these stories spread nationwide as a shared narrative pattern.
It is a shrine based on the belief that regards the emergence of hot spring water, or the hot spring area itself, as a deity or as a divine blessing. They are read as "yuzenchinja" or "onsenjinja" and are enshrined in various places. They have been placed at the entrances or centers of hot spring areas as places to give thanks for the blessing of hot water and pray for safety.
Not necessarily. Yutate is a sacred ritual that uses boiled water as a medium for purification and prayer, and it has been practiced at shrines across Japan, not only in hot spring areas. In the way it treats hot water as sacred, it is connected to the sense of reverence for hot springs as a blessing.
No, it is not limited to one religion. Buddhist elements such as Yakushi Nyorai worship and Shinto elements such as hot spring shrines often coexist in the same hot spring area, showing a form of faith in which gods and Buddhas overlap. This article neither promotes nor rejects any of these beliefs, and describes them neutrally as culture.
Japanese hot springs have long been linked with faith, grounded in the sense of reverence for bubbling water as a blessing of nature. That connection appears in many forms: origin legends that tie the discovery of a hot spring to a great monk, an animal, or a deity; Yakushi Nyorai worship and hot spring shrines that place the spring itself and the hot spring area under divine protection; yutate rituals that pray using hot water; and Shugendo, which regards geothermal zones as sacred sites.
Most of these are not historically verified facts, but traditions and beliefs that have been handed down from place to place. Precisely for that reason, when visiting a hot spring area, if you pay attention to the shrines and temples that remain, or to the names of animals attached to springs and hot spring areas, you can see the cultural layers of how that land has related to hot water. If hot springs are understood not only as a bathing experience, but also as a place tied to faith and history, Japanese hot spring culture becomes even deeper and more meaningful.
Japanese hot springs have long been closely associated with faith. Water bubbling up from the ground was a blessing that defied natural explanation, and in many regions its discovery and benefits were handed down through stories connected to gods, Buddhas, and sacred figures. The fact that shrines and temples remain in hot spring areas, and that places across Japan bear names such as "hot spring shrine" and "hot spring temple," is a lingering trace of this connection.
To put the conclusion first, the relationship between hot springs and faith can be organized into three main forms. First are origin legends, which link the discovery of a hot spring to a great monk, a deity, or even an animal. Second is belief in the spring itself or the hot spring area as being under divine protection, such as Yakushi Nyorai worship and hot spring shrines. Third are rituals like yutate, in which prayers are offered using hot water. This article neutrally organizes the connection between hot springs and faith around these three themes.
Many of the origin legends and discovery tales discussed here are not historically verified facts, but local traditions passed down from place to place. In many cases, there are several different accounts regarding the people and dates involved. Rather than promoting or rejecting any particular religion, this article describes faith as an object of belief and as a cultural tradition, from a neutral standpoint. For more on the therapeutic culture of hot springs themselves, see What Is Toji?, and for the historical flow of bathing culture, see The History of Bathing Culture.
Origin legends are stories that tell when, by whom, and how a certain hot spring was discovered. Many hot spring areas preserve such stories of discovery. Springs that bubble up from the ground have long attracted people’s attention, and as their origins were passed down, beings such as gods, Buddhas, monks, and animals came to appear as the bearers of those stories.
What is important to note is that many origin legends are not historical records, but accounts of pedigree and origin shaped in later times. Even within the same hot spring area, multiple traditions may remain, and the supposed discoverer or date is often inconsistent. Accordingly, this article treats origin legends as stories of origin that the hot spring area has cherished, without determining whether they are fact or fiction.
Origin legends generally fall into several typical patterns. Broadly speaking, they can be grouped into those in which a famous monk is said to have discovered or opened the spring, those in which a person discovered the spring after seeing an injured animal healing in the water, and those in which the spring is said to have been revealed through a divine oracle or manifestation.
| Type | Content of the Legend | Notes |
|---|---|---|
| Discovery by a great monk | Famous monks such as Gyoki or Kobo Daishi (Kukai) are said to have found the spring during their travels, or caused it to gush forth | Widely found across Japan. Often understood as a way of giving prestige to a hot spring area by associating it with a renowned monk, and cannot be confirmed as historical fact |
| Discovery by an animal | People supposedly learned of the spring after seeing cranes, herons, white herons, bears, deer, and other animals healing their injuries in the water | Traces remain in names such as "Heron Spring" and "Crane Spring." This type of discovery tale is found nationwide |
| Divine manifestation | The spring is said to have been found or protected through an oracle or manifestation of Yakushi Nyorai or a Gongen deity | Linked to the origins of hot spring shrines and hot spring temples. Strongly characterized as an object of faith |
Names that appear repeatedly in origin legends are those of the Nara-period monk Gyoki and the Heian-period monk Kobo Daishi (Kukai). In many places there are traditions saying, "Gyoki opened this spring" or "hot water gushed where Kobo Daishi struck the ground with his staff." The reason the same names appear so widely is thought to be that people sought to lend authority to a hot spring area’s origin by connecting it with the name of a famous monk.
For that reason, these legends cannot simply be treated as historical fact. In many hot spring areas, similar legends remain even where there is no solid record that Gyoki or Kobo Daishi actually visited the place. It is more appropriate to regard them as a nationwide pattern of "discovery by a great monk" that has been shared and told from place to place.
Another widely seen type is the discovery tale in which people learned of the spring’s benefits after seeing an injured animal healing its wounds in hot water. In addition to birds such as cranes, herons, and white herons, bears and deer also appear in these stories. Names related to animals, such as "Heron Spring" and "Crane Spring," are sometimes preserved in hot spring areas or at source springs, and such names are often linked to this kind of legend.
Like the monk legends, animal discovery tales are not unique to a particular hot spring area but are a pattern found widely across Japan. The idea that an animal of nature, rather than a human, first discovered the spring’s benefits suggests a sense of respect for hot springs as a blessing of nature. Here too, the point is not to assert the benefits as fact, but to understand the structure of the tradition itself.
The connection between hot springs and faith is not limited to stories of discovery. The spring water itself, and the hot spring area, have been considered under divine protection and treated as objects of worship. Representative examples are Yakushi Nyorai worship and the existence of hot spring shrines.
Yakushi Nyorai is a Buddha widely revered as a savior of human suffering. In hot spring areas, temples and Yakushi halls dedicated to this Buddha are often found. Temples and shrines with names such as "hot spring temple" and "hot spring Gongen" can be found in many places, showing how hot spring water and devotion to Yakushi Nyorai have been layered together. This can be understood as the merging of hope for healing through hot water with faith in a Buddha believed to save people. This article does not argue for or against that faith itself, but describes it neutrally as part of the culture rooted in hot spring areas.
Meanwhile, shrines called hot spring shrines are also enshrined in many places. These express a belief that regards the emergence of hot spring water, or the hot spring area itself, as a deity or as a divine blessing. Shrines have been placed at the entrances or centers of hot spring areas and passed down as places to give thanks for the blessing of hot water and pray for safety. It is not unusual for Yakushi Nyorai worship as a Buddha and hot spring shrines as a deity to coexist in the same hot spring area, revealing the layered influence of long-standing Japanese syncretic faith.
The presence of such temples and shrines shows that hot springs were not merely bathing facilities, but places tied to local faith and daily life. The background to how Japanese people have viewed hot springs as something special is also discussed from a cultural perspective in Why Japanese People Love Hot Springs and Sauna.
The connection between hot springs and faith can also be seen in rituals that use hot water. One such ritual is yutate.
Yutate refers to a ritual performed at shrine grounds or similar places, in which water is boiled in a large cauldron and used in a sacred ceremony. It often includes dipping bamboo grass or ritual paper streamers into the boiled water and sprinkling it over worshippers or the surrounding area. It is performed to pray for good health, protection from misfortune, bountiful harvests, and to divine the fortune or misfortune of the coming year. In some regions it is transmitted as yutate kagura, connected with shrine music and dance.
What should be kept in mind here is that yutate does not necessarily use natural hot spring water. It is a ritual that uses boiled water as a medium for purification and prayer, and it has been practiced at shrines across Japan, not only in hot spring areas. Even so, the idea of treating hot water as sacred and using it in a place of prayer is closely related to the sense of reverence for hot springs as a blessing. It is often discussed in the context of hot springs and faith as an example of the cultural depth in which water can become not just part of daily bathing, but also an object of purification and prayer.
When discussing the relationship between faith and hot springs, the presence of Shugendo should not be overlooked. Shugendo is a practice based on mountain worship, in which practitioners seek spiritual power through entering the mountains and undergoing severe training.
Geothermal areas associated with volcanic activity, and rugged hot spring sites filled with the smell of sulfur, have often been called "hells." In the context of Shugendo, such places that seem to repel ordinary people were sometimes regarded as sacred sites, that is, holy places for training and faith. Rising steam and landscapes unlike ordinary terrain were understood as places where power beyond human understanding could be felt.
In other words, hot spring areas could be places of healing through hot water, and at the same time, through their volcanic terrain, places of faith. The coexistence of two faces in the same hot spring area, a peaceful place for bathing and a sacred site in a rugged geothermal zone, shows the broad scope of the relationship between hot springs and faith. These connections, too, are based on religious beliefs and local traditions passed down region by region, and cannot be explained in a uniform way.
In many cases they are not historically verified facts, but traditions passed down in local areas. Multiple theories may remain within the same hot spring area, and the supposed discoverer and date are not always fixed. Legends of discovery by Gyoki or Kobo Daishi are also widely distributed throughout Japan, and it is reasonable to understand them as a pattern that associates the name of a great monk with the origin story. This article does not determine whether they are fact or fiction.
It is thought that connecting the names of famous monks to the origin of a hot spring was a way to lend authority to the status and pedigree of that hot spring area. As a result, similar legends remain in many places even where there is no record that those monks actually visited, and these stories spread nationwide as a shared narrative pattern.
It is a shrine based on the belief that regards the emergence of hot spring water, or the hot spring area itself, as a deity or as a divine blessing. They are read as "yuzenchinja" or "onsenjinja" and are enshrined in various places. They have been placed at the entrances or centers of hot spring areas as places to give thanks for the blessing of hot water and pray for safety.
Not necessarily. Yutate is a sacred ritual that uses boiled water as a medium for purification and prayer, and it has been practiced at shrines across Japan, not only in hot spring areas. In the way it treats hot water as sacred, it is connected to the sense of reverence for hot springs as a blessing.
No, it is not limited to one religion. Buddhist elements such as Yakushi Nyorai worship and Shinto elements such as hot spring shrines often coexist in the same hot spring area, showing a form of faith in which gods and Buddhas overlap. This article neither promotes nor rejects any of these beliefs, and describes them neutrally as culture.
Japanese hot springs have long been linked with faith, grounded in the sense of reverence for bubbling water as a blessing of nature. That connection appears in many forms: origin legends that tie the discovery of a hot spring to a great monk, an animal, or a deity; Yakushi Nyorai worship and hot spring shrines that place the spring itself and the hot spring area under divine protection; yutate rituals that pray using hot water; and Shugendo, which regards geothermal zones as sacred sites.
Most of these are not historically verified facts, but traditions and beliefs that have been handed down from place to place. Precisely for that reason, when visiting a hot spring area, if you pay attention to the shrines and temples that remain, or to the names of animals attached to springs and hot spring areas, you can see the cultural layers of how that land has related to hot water. If hot springs are understood not only as a bathing experience, but also as a place tied to faith and history, Japanese hot spring culture becomes even deeper and more meaningful.