In Japan, the tenth month of the traditional lunar calendar is commonly known as Kannazuki, or the “Month Without Gods.” According to Japanese tradition, the deities of Japan leave their local shrines during this month and travel to Izumo, in present-day Shimane Prefecture. In Izumo, however, the month is called Kamiarizuki, the “Month With Gods,” reflecting the belief that the deities gather here.
This distinctive tradition is one of the most important expressions of Izumo’s ancient religious culture. The grand ceremonies held during this special month are collectively associated with the Kamiari Festival. Centered on Izumo Taisha, the festival connects the world of Japanese mythology with living religious traditions that have been passed down for generations.
During this season, worshippers and visitors arrive from across Japan. Izumo takes on a uniquely solemn atmosphere as people gather to honor the deities believed to be present in the region.
The origins of the Kamiari Festival are closely connected with the ancient Japanese myth known as the “Transfer of the Land”, recorded in the Kojiki and Nihon Shoki, two of Japan’s oldest historical and mythological texts.
Okuninushi-no-Okami, the principal deity of Izumo Taisha, is traditionally described as a god who taught people important knowledge related to agriculture, medicine, and daily life, helping to establish a prosperous land.
According to the mythology, Amaterasu Omikami, the great sun deity who ruled the heavenly realm, believed that the earthly land should ultimately be governed by her descendants. She therefore sent several divine messengers to ask Okuninushi to relinquish control of the land.
Okuninushi eventually accepted the request, asking in return for a magnificent palace where he could continue to govern the unseen spiritual world. This sacred palace is traditionally regarded as the origin of Izumo Taisha.
After transferring the visible world to the descendants of Amaterasu, Okuninushi became associated with the unseen realms of relationships, destiny, and spiritual connections. This is one reason why Izumo Taisha is widely revered as a sacred place for enmusubi, or the forming of meaningful bonds.
Although enmusubi is often associated with romantic relationships today, its traditional meaning is much broader. It includes connections between family members, friends, colleagues, communities, and the many encounters that shape a person’s life.
The beginning of the Kamiari Festival is marked by the Kami-mukae Shinji, or “Ceremony for Welcoming the Gods.” It takes place on the evening of the tenth day of the tenth month of the traditional lunar calendar at Inasa Beach, west of Izumo Taisha.
Inasa Beach is itself an important location in Izumo mythology. It is traditionally said to be the place where Takemikazuchi-no-Kami, a divine messenger of Amaterasu, arrived and negotiated with Okuninushi over the transfer of the land.
On the night of the ceremony, bonfires illuminate the beach, creating an atmosphere unlike any other time of year. Shinto priests face the sea and establish a sacred himorogi, a temporary sacred object or space through which the visiting deities are welcomed.
The gods are traditionally believed to arrive from across the sea, accompanied by the Ryujashin, a sacred dragon-serpent deity. After the ceremony, the priests lead the divine procession toward Izumo Taisha by lantern light, accompanied by the solemn sounds of traditional gagaku court music.
The procession follows what is known as the Kami-mukae no Michi, or “Road for Welcoming the Gods.” Visitors who quietly follow the procession can experience an atmosphere that seems to connect the modern town of Izumo directly with the world of ancient Japanese mythology.
Inasa Beach is visited throughout the year, and one of its best-known traditions involves its sacred sand. Visitors traditionally take a small amount of sand from the beach and bring it to Soga-no-Yashiro, a shrine located behind the Main Sanctuary of Izumo Taisha.
After offering the sand they have brought, visitors may receive sacred sand in return. This sand is traditionally regarded as a protective blessing, believed to help ward off misfortune and bring good fortune to the home.
After the Kami-mukae ceremony, the deities who have gathered in Izumo are traditionally believed to stay at Jukusha, the “Nineteen Shrines,” within the grounds of Izumo Taisha.
The Nineteen Shrines are distinctive long, narrow buildings located to the east and west of the Main Sanctuary. Each has a series of doors, creating an unusual appearance among Japanese shrine architecture. During the Kamiari Festival, these shrines are regarded as special places where the visiting deities are welcomed.
Various ceremonies are held during the festival period, and the atmosphere of the shrine grounds becomes especially solemn. Worshippers often visit quietly, mindful of the traditional belief that the gods are staying within the shrine precincts.
The visiting deities are also believed to gather at Kamino-miya, a subsidiary shrine west of Izumo Taisha, for a divine council known as Kamuhakari.
According to tradition, the gods discuss matters that affect the coming year, including the harvest, human destinies, events in society, and the relationships between people. These are matters beyond human knowledge, making Kamuhakari one of the most fascinating aspects of the Kamiari tradition.
Because the gods were believed to be holding their important discussions, local people traditionally tried to remain quiet during Kamiarizuki. In some communities, the volume of festival music was reduced and certain noisy activities, such as carpentry, were avoided.
These customs reflect the deep respect with which the people of Izumo have traditionally welcomed the visiting deities.
After the seven-day Kamiari Festival, the Karasade Festival is held to see the gods off as they prepare to return to their respective regions.
According to tradition, the deities are first moved from the Nineteen Shrines to the Haiden, or Worship Hall, where Shinto priests recite sacred prayers. The gate in front of the Main Sanctuary is then struck three times, signaling that the time has come for the gods to depart.
On the seventeenth day of the traditional tenth lunar month, the gods are believed to leave Izumo Taisha. A second Karasade ceremony is held on the twenty-sixth day, when they are traditionally said to leave the land of Izumo itself.
With these ceremonies, the sacred season of Kamiarizuki comes to an end. Izumo returns to its ordinary rhythm, while preparations for welcoming the gods again the following year gradually begin.
The Kamiari Festival is not limited to Izumo Taisha. Numerous shrines throughout the Izumo region hold ceremonies associated with Kamiarizuki, reflecting the widespread nature of this ancient tradition.
Among them are Hinomisaki Shrine, Kamosu Shrine, Sada Shrine, and Mankusen Shrine. Each shrine preserves its own customs and ceremonies connected with the arrival and departure of the gods.
Mankusen Shrine is particularly associated with the final stage of the gods’ journey. According to local tradition, the deities gather here for a final naorai, a ritual meal and celebration following sacred ceremonies.
The gods are said to hold a final banquet at the shrine, rest after their journey through Izumo, and then depart for their respective lands. This tradition gives Mankusen Shrine an important place in the cycle of Kamiarizuki.
During the Kamiari Festival season, the entire Izumo region takes on a distinctive atmosphere. The normally peaceful town welcomes many worshippers from across Japan, creating a sense of movement and excitement, yet the mood remains remarkably quiet and respectful.
Walking through the grounds of Izumo Taisha at night, visitors may hear the rustling of ancient trees and see lantern light flickering in the darkness. Together with the traditional music and ceremonies, these surroundings create a powerful sense of connection with the myths that have been associated with Izumo for centuries.
The Kamiari Festival is more than a traditional event for visitors. It offers a glimpse into Japanese spiritual culture, traditional views of nature, and the importance placed on relationships and human connections.
For travelers interested in Japanese mythology and culture, visiting Izumo during Kamiarizuki provides a unique opportunity to experience traditions that remain deeply rooted in the region. Exploring Izumo Taisha, Inasa Beach, and the surrounding sacred sites during this special season allows visitors to encounter a living tradition where ancient mythology and modern life continue to meet.