Sai Shrine, located in Sakurai City, Nara Prefecture, is an auxiliary shrine of Omiwa Shrine. Its formal name is Sai-ni-Imasu Omiwa-no-Aramitama Shrine. Nestled in a tranquil natural setting at the western foot of Mount Miwa, its sacred grounds offer a peaceful atmosphere where visitors can experience a tradition of worship that has continued since ancient times.
Sai Shrine enshrines the aramitama, or vigorous and dynamic spirit, of Omononushi-no-Okami, the principal deity associated with Mount Miwa. It is regarded as a particularly powerful spiritual site within the Omiwa Shrine complex. Many worshippers travel from across Japan to pray for recovery from illness, good health, and protection from misfortune.
The founding of Sai Shrine is traditionally traced to the reign of Emperor Suinin, giving it a history that reaches back to ancient Japan. It is also recorded in the Engishiki Jinmyocho, a register of shrines compiled during the Heian period, under the name Sai-ni-Imasu Omiwa-no-Aramitama Shrine, with five deities enshrined. This record reflects the shrine’s recognized importance in Japan’s religious traditions.
While Omiwa Shrine primarily venerates the nigimitama, or gentle and harmonious spirit, Sai Shrine focuses on the aramitama, representing a more forceful and direct manifestation of divine power. These complementary aspects form an important part of the religious tradition surrounding Omiwa Shrine, and Sai Shrine plays a vital role within it.
The principal deity of Sai Shrine is Omiwa-no-Aramitama-no-Kami. Four other deities are also enshrined: Omononushi-no-Kami, Himetataraisuzuhime-no-Mikoto, Seyatatarahime-no-Mikoto, and Kotoshironushi-no-Kami.
Through the blessings attributed to these deities, Sai Shrine has long been revered for prayers for recovery from illness, longevity, good health, and protection against misfortune. Worshippers seeking relief from prolonged illnesses and serious conditions continue to visit the shrine to offer their prayers.
The present shrine buildings consist of a worship hall with an irimoya-style roof, a hip-and-gable design traditionally finished with cypress bark. Beyond it, a flight of stone steps leads to the main sanctuary, which is built in the Kasuga-zukuri style and faces west.
The architecture is restrained yet dignified, creating an atmosphere befitting the shrine’s association with the powerful but purifying spirit of the deity. Surrounded by the natural presence of Mount Miwa, the grounds are quiet and serene. Many visitors find that the stillness encourages reflection and a sense of spiritual renewal.
Behind and to the left of the worship hall is a well known as the Sai Sacred Well. Also called the medicinal well, it is closely associated with the shrine’s name. Its water is revered as sacred water and has traditionally been sought by people praying for recovery from illness and the preservation of good health.
According to local belief, this sacred spring has long been regarded as beneficial for a wide range of ailments. Visitors can draw water using a ladle and may take some home. It is common to see worshippers carrying containers to collect the water, a reminder that the shrine remains an active center of faith rather than simply a historical monument.
Every year on April 18, Sai Shrine holds the Hana-shizume Festival, also known as the Medicine Festival. This traditional ceremony is said to have a history of approximately 2,000 years and is associated with prayers to calm epidemics and protect people’s health.
According to tradition, during the reign of Emperor Sujin, a widespread epidemic afflicted the country. When Otoneno-Mikoto enshrined and worshipped Omononushi-no-Okami, the epidemic subsided. This story is closely linked to the development of Sai Shrine’s reputation as a sacred place for prayers against infectious diseases and for recovery from illness.
The Hana-shizume Festival was also recognized in the Taiho Code of 701, which established important regulations for the administration and rituals of the ancient Japanese state. The ceremony represents a longstanding tradition of religious practices associated with healing and protection against epidemics.
The grounds of Sai Shrine also serve as the official entrance for worshippers who wish to climb Mount Miwa. Visitors must apply at the shrine office, pay the prescribed climbing fee, receive a white ceremonial sash, and undergo a purification ritual before beginning the ascent.
Mount Miwa itself is regarded as the sacred body of Omiwa Shrine’s deity and has been treated as a restricted sacred mountain since ancient times. Strict rules remain in place for those making the pilgrimage. Photography, eating, drinking, and smoking are prohibited during the ascent, and visitors are expected to approach the mountain with respect and a sincere sense of purpose.
Sai Shrine is therefore an important starting point for the sacred journey up Mount Miwa. It is a place to pray for health, purify the mind and body, and prepare to enter one of Japan’s most revered sacred mountains.
Sai Shrine plays an essential role in the religious traditions of Omiwa Shrine. Its sacred water, the annual Hana-shizume Festival, and its role as the gateway to Mount Miwa bring together different aspects of a faith that has endured from ancient times to the present day.
For travelers interested in Japan’s ancient spiritual traditions, Sai Shrine offers an opportunity to encounter a living place of worship where prayers for healing, health, and protection continue amid the quiet natural surroundings of Mount Miwa.