Complete Guide to Isono Shrine | The Charm and Visiting Information of Iyo Province’s Foremost Shrine with 1800 Years of History
Isono Shrine, located in Nakano, Saijo City, Ehime Prefecture, is a venerable shrine boasting a long and distinguished history of over 1800 years. It enshrines Amaterasu Omikami, the ancestral deity of the Imperial family, and Takekunikoriwake no Mikoto, the ancestral deity of national development. During the Nara period, it was the foremost shrine in Iyo Province and received deep reverence from the Imperial family.
This article will introduce the charm of this prestigious shrine in its entirety, including its history and origins, highlights within the grounds, its connection to the magnificent Saijo Festival, blessings and prayer information, as well as access methods and points to consider when visiting.
About Isono Shrine | A Representative Shikinaisha (Great Shrine) in Ehime Prefecture
Isono Shrine is located approximately 3 km south of the center of Saijo City, Ehime Prefecture, and is a sacred site enveloped in a deep forest of ancient camphor and cedar trees. It is a highly prestigious shrine listed in the Engishiki (ancient Japanese legal code), formerly a National Shrine of the second rank, and is currently designated as a Special Shrine by the Association of Shinto Shrines.
The shrine’s crest is the “Imperial Carriage,” symbolizing its deep connection to the Imperial Family. In 1982, then-Prince Hiro (the current Emperor) visited the shrine, and its deep ties to the Imperial Family continue to this day.
Deities and Divine Virtues
Isono Shrine enshrines the following two deities:
Main Deity:
- Amaterasu Omikami (Imperial Ancestor Amaterasu Omikami): The supreme deity of Japan and the goddess who governs the sun. The shrine bestows divine blessings of national peace and security, good fortune, and abundant harvests.
- Takekunikoriwake-no-Mikoto: A prince of Emperor Keiko, he dedicated himself to the development of Iyo Province and is considered the ancestral deity of national development. He bestows divine blessings of regional development, industrial prosperity, and good fortune.
Through these two deities, Isono Shrine is revered as a shrine that bestows a wide range of blessings, from national peace and security to regional development and personal good fortune.
History and Origins of Isono Shrine | The Story of its Establishment Over 1800 Years Ago
Founding Legend
The founding of Isono Shrine dates back to the time of the 12th Emperor Keiko. It is said that when Prince Takekunikoriwake-no-Mikoto, son of Emperor Keiko, was assigned to Iyo Province, he enshrined Amaterasu Omikami of Ise Grand Shrine, marking the shrine’s founding. Counting from this event, the shrine boasts a long history of over 1800 years since its founding.
Takekuni-no-Mikoto served as the provincial governor of Iyo Province, dedicating himself to the development and governance of this region. In recognition of his achievements, he was later enshrined as a deity alongside the main deity, resulting in the current two-deity system.
Prosperity in the Nara Period | Towards Becoming the Foremost Shrine of Iyo Province
During the Nara period, Isono Shrine became widely recognized as the foremost shrine of Iyo Province. The Engishiki Jinmyocho (compiled in 927) lists it as “Isono Shrine, Niihama District, Iyo Province, Myojin Taisha,” granting it the highest rank of Myojin Taisha.
A Myojin Taisha is a shrine of national importance that received special reverence from the imperial court. Within Iyo Province, only Isono Shrine held this status. This demonstrates the high regard in which Isono Shrine was held at that time.
Deep Ties with the Imperial Family
Isono Shrine has a deep connection with the Imperial Family due to its founding history, and has received reverence from successive emperors. Records show that during the Nara and Heian periods, the Imperial Court frequently offered offerings (heihaku, or sacred cloth offered to the shrine).
Even in modern times, it was ranked as a National Shrine of the second rank in 1871 (Meiji 4), and the current Shinto-style shrine building was rebuilt in 1940 (Showa 15). The visit of Prince Hirohito (the current Emperor) in 1982 (Showa 57) was a symbolic event demonstrating the continuation of this tradition to the present day.
Highlights of the Shrine Grounds | Shinto-style Shrine Building and Solemn Precinct
Main Hall and Worship Hall
The shrine building of Isono Shrine, rebuilt in 1940 (Showa 15), is in the Shinto-style, adopting the same style as Ise Grand Shrine. This stems from the fact that one of the enshrined deities is Amaterasu Omikami, reflecting the high status of the shrine.
The simple yet solemn appearance, characterized by the gable roof, flat entrance, and chigi and katsuogi ornaments typical of the Shinmei-zukuri architectural style, inspires deep reverence in visitors. Standing before the main hall, one can feel the weight of over 1800 years of history and the sacred atmosphere.
The Guardian Forest and Sacred Trees
The shrine grounds are surrounded by giant camphor and cedar trees over several hundred years old, truly deserving of the term “guardian forest.” In particular, the large camphor trees lining the approach to the shrine, with trunks several meters in circumference, are witnesses to the long history of protecting this land.
These sacred trees symbolize the powerful spiritual energy of the shrine and offer healing and power to visitors. Combined with the effects of forest bathing, it is a space where both mind and body can be refreshed.
Treasure Hall | Houses National Important Cultural Properties
Within the shrine grounds is a treasure hall housing approximately 130 sacred treasures. Of particular importance is the “Yoshu Niihama Genealogy,” designated as a National Important Cultural Property.
The “Yoshu Niihama Genealogy” is a valuable historical document recording the genealogy of a powerful family in Niihama District, Iyo Province (present-day Saijo City area), and is an indispensable document for understanding the history of this region from ancient to medieval times. Other exhibits include ancient documents, divine statues, and votive offerings, all of which tell the long history of Isono Shrine.
For information regarding the treasure hall’s opening hours and admission fees, it is recommended to contact the shrine in advance.
Subsidiary Shrines and Auxiliary Shrines
Several subsidiary shrines and auxiliary shrines are located around the main shrine. Each of these smaller shrines enshrines a deity with different divine virtues, attracting worshippers seeking various blessings.
Taking your time to stroll through the shrine grounds and pay your respects at each shrine will allow for a deeper pilgrimage experience.
Saijo Festival and Isono Shrine | The Stage of Shikoku’s Three Great Festivals
When discussing Isono Shrine, the “Saijo Festival,” held every October, is indispensable. This festival, centered around the annual grand festival of Isono Shrine, is Saijo City’s largest festival event and is counted as one of the “Three Great Festivals of Shikoku.”
Magnificent Danjiri and Mikoshi
The biggest highlight of the Saijo Festival is the magnificently decorated “danjiri” (floats) and “mikoshi” (portable shrines). At the Isono Shrine festival, approximately 80 danjiri and mikoshi gather from all over Saijo City, making it the largest of all the Saijo festivals.
The danjiri are floats that can reach over 5 meters in height, adorned with luxurious curtains and lanterns embroidered with gold and silver threads. As night falls, the lanterns are lit, and their fantastical beauty overwhelms all who see them.
River Entry Ritual
The climax of the Saijo Festival is the “River Entry” ritual on the Kamo River. In the early morning of October 16th, approximately 50 floats and portable shrines enter the Kamo River simultaneously. The sight of the portable shrines being carried across the river is truly breathtaking.
The floats and portable shrines moving through the river, kicking up splashes of water, and the spirited shouts of the bearers, convey the weight of a tradition that has continued for over 300 years. Many tourists from all over the country visit to witness this moment.
Festival Schedule
The annual festival of Isono Shrine is held every year on October 15th and 16th. The 15th is the eve of the festival, when floats from each district parade through the streets. The main festival day is the 16th. After the early morning river-entry ritual, the procession enters Isono Shrine in the afternoon.
During the Saijo Festival, the entire city of Saijo is immersed in the festivities, and even normally quiet shrines become bustling with worshippers and spectators.
Benefits and Prayers | From Good Fortune to Life Rituals
Main Benefits
Isono Shrine is believed to offer the following benefits through the divine virtues of its enshrined deities:
- National Peace and Security, Family Safety: Divine Virtue of Amaterasu Omikami
- Good Fortune and Protection from Evil: Divine Virtue of Both Deities
- Abundant Harvest and Business Prosperity: Divine Virtue of Amaterasu Omikami
- Industrial Development and Business Prosperity: Divine Virtue of Takekuni-Koriwake no Mikoto
- Regional Development and Protection of Homeland: Divine Virtue of Takekuni-Koriwake no Mikoto
In particular, because the shrine enshrines Takekuni-Koriwake no Mikoto, the ancestral deity of national development, many worshippers visit to pray for the success of new businesses and the development of the region.
Types of Prayers and Reception Hours
Isono Shrine accepts prayers for various milestones and wishes in life.
Main Prayer Services Offered:
- First Shrine Visit (Omiyamairi)
- Shichi-Go-San Ceremony
- Protection from Evil Spirits and Misfortune
- Traffic Safety
- Family Safety and Business Prosperity
- Prayer for Success in Exams and Academic Achievement
- Prayer for Safe Childbirth
- Recovery from Illness
- Groundbreaking Ceremony and Ridgepole Raising Ceremony
Prayer services are usually available from 9:00 AM to 4:00 PM, but may change due to festivals and events. Especially during the New Year period and the Saijo Festival, congestion is expected, so it is recommended to contact the shrine in advance and make a reservation.
Goshuin (Shrine Seals) and Offerings
At Isono Shrine, you can receive a Goshuin as proof of your visit. The Goshuin, with its beautiful calligraphy and red seal that reflects the history and prestige of the shrine, is popular among Goshuin collectors.
Various offerings such as amulets and talismans are also available. Especially during the Saijo Festival, special festival-only items are sometimes available.
Annual Events and Festivals | A Year at Isono Shrine
Isono Shrine holds various festivals and events throughout the year.
Main Annual Events
- January 1st: Saitansai (New Year’s Day Festival)
- February 3rd: Setsubun Festival
- February 17th: Kinensai (Harvest Festival)
- June 30th: Oharae-shiki (Shinto ritual to cleanse away sins and impurities accumulated over the past six months)
- October 15th & 16th: Reitaisai (Saijo Festival)
- November 23rd: Niiname-sai (Harvest Festival)
- December 31st: Oharae-shiki & Joya-sai (New Year’s Eve Festival)
These festivals are traditional Shinto rituals passed down since ancient times and are deeply rooted in the lives of the local people. The Reitaisai, in particular, is the most important festival of the year and is celebrated with great fanfare.
Access and Visiting Information | How to Get to Isono Shrine
Location
Address: 1649 Nakano-ko, Saijo City, Ehime Prefecture
Access by Train
From JR Yosan Line “Iyo-Saijo Station”:
- Walking: Approximately 40 minutes (approximately 3 km)
- Taxi: Approximately 10 minutes
- Bus: Get off at “Isono Shrine” bus stop (Setouchi Bus)
JR Iyo-Saijo Station is the central station of Saijo City, where express trains also stop. From the station, head south, cross the Kamo River, and continue south to reach Isono Shrine. Walking will allow you to enjoy a stroll through the streets of Saijo City.
Access by Car
From Matsuyama Expressway “Iyo-Komatsu IC”:
- Approximately 15 minutes (approx. 8 km)
From Matsuyama Expressway “Iyo-Saijo IC”:
- Approximately 10 minutes (approx. 5 km)
If using the expressway, Iyo-Saijo IC is the closest. After exiting the IC, take National Route 11 and follow the signs to reach the shrine.
Parking
There is ample parking for visitors on the shrine grounds and in the surrounding area. While there is usually sufficient parking space, it becomes extremely crowded during the first three days of the New Year and during the Saijo Festival. Temporary parking may be available during these periods, but using public transportation is recommended.
Visiting Hours
Entry to the shrine grounds is generally free, but the shrine office is open from 9:00 AM to 5:00 PM. Requests for Goshuin (shrine stamps), amulets, and prayers are also accepted during these hours.
Visiting during the quiet hours of early morning or evening will allow you to experience a more sacred atmosphere. ## Nearby Tourist Attractions | Enjoying Saijo City
Why not combine your visit to Isono Shrine with some sightseeing in Saijo City?
Ishizuchi Shrine
Ishizuchi Shrine, which enshrines Mount Ishizuchi, the highest peak in western Japan, is an important shrine in Saijo City, alongside Isono Shrine. While the main shrine is located at the summit of Mount Ishizuchi, you can also worship at the Kuchinomiya main shrine at the foot of the mountain.
Uchinuki (Natural Springs)
Saijo City is known as the “City of Water,” and you can see “uchinuki,” where groundwater naturally springs up, in various locations throughout the city. Be sure to taste the beautiful water, which has been selected as one of Japan’s 100 Best Waters.
Strolling Through Saijo City
Around Iyo-Saijo Station, you can enjoy strolling through historical streets and shopping areas. A particularly notable feature is the abundance of waterways and springs, characteristic of the “City of Water.”
Manners and Points for Visiting a Shrine
Basic Worship Etiquette
- Bow before passing through the torii gate: This is a sign of respect before entering the sacred area.
- Purify yourself at the water basin: Purify your left hand, then your right hand, then your mouth.
- Avoid walking in the center of the path: The center is considered the path of the gods.
- Etiquette at the main hall: Two bows, two claps, one bow (two bows, two claps, one bow)
Clothing and Belongings
There are no specific dress code requirements for visiting a shrine, but please dress neatly and respectfully, as it is a sacred place. If you are receiving prayers, it is advisable to wear attire that is not too casual.
The shrine grounds are rich in nature, and there may be insects such as mosquitoes in the summer. We recommend taking appropriate precautions for the season.
Photography
Photography is generally permitted on the shrine grounds, but photography inside the main hall and during prayers is prohibited. Please also be considerate of other visitors.
Summary | Experiencing History and Blessings at Isono Shrine
Isono Shrine, with its history spanning over 1800 years, is the foremost shrine in Iyo Province and continues to attract the faith of many people. It enshrines two deities: Amaterasu Omikami, the ancestral goddess of the imperial family, and Takekunikoriwake no Mikoto, the ancestral god of national development. The shrine bestows a wide range of blessings, from national peace and security to personal good fortune.
The shrine grounds are full of attractions, including the magnificent Shinto shrine buildings, the sacred forest lined with trees hundreds of years old, and the treasure hall housing nationally important cultural properties. In particular, the Saijo Festival, held every October, is nationally known as one of the three major festivals of Shikoku, and the magnificent floats and the river-entering ritual are truly breathtaking.
When visiting Ehime Prefecture, be sure to visit Isono Shrine. You will feel refreshed both physically and mentally by experiencing the sacred atmosphere nurtured by its long history and the deep faith of the local people. The beautiful nature and abundant water of Saijo City, along with the experience of visiting its historic shrines, will surely create unforgettable memories.
