Kokusekiji Sominsai in Oshuu

A winter water purification ceremony

By Malcome Larcens    - 4 min read

Sominsai is a popular winter purification event in Iwate. It helps guard against illness and bring prosperity to the participants. The Kokusekiji Sominsai is one of the biggest and longest such event. It starts at ten o'clock at night and goes on until sunrise the next day. The participants will go through several challenges over the course of the event.

The event is held on the night of the 7th to the 8th day of the new year lunar calendar. This falls around the 10th of February.

Sominsai originated around 1000 years ago according to the legend. A high Buddhist priest traveled to what is now Iwate Prefecture looking for a wife. He met two brothers, Somin Shorai and Kotan Shorai. The elder brother Somin, was very poor and the younger brother was very wealthy, owning several warehouses. However, the younger brother refused him hospitality so he stayed with the older brother. On his way back, the priest stopped by to thank Somin for his hospitality. He asked about his family. Ordered them to put on a ring of "kaya grass" for protection. Next, he destroyed everything except Somin and his family. The "somin bukuro" is made of the same material, hence its great power.

The Kokusekiji Sominsai, as mentioned earlier, lasts all night and has four events or challenges. The first part is the water purification ceremony. The participants get ready in their assigned shelters, they keep only a loin cloth on, (fundoshi in Japanese). Next they march down to the river for the water purification. Throughout the event the participants shout as loudly as possible "jasso joyasa", it essentially means "evil go away". They go down to the river, douse themselves in cold running water not once but 3 times. There are a few hundred participants, so it takes a while.

The next event is standing atop a smoldering pyre as a show of bravery, all participants will take turn climbing at the top and shout "jasso joyasa". It's not actually wood burning, it's some green kindling mixed with the logs that makes a lot of smoke. Still, it is quite impressive.

After that, the participants climb the steps of the temple with a burning wood stick and try to get past the guard to take the lucky bag. This part represents the participants trying to get the lucky bag (somin bukuro). None of them succeed as it has to be fought for in a long battle. Probably that getting the lucky bag this way might not yield the good health and prosperity that the bag imparts. This is considered cheating.

The final event is the battle for the lucky bag, The battle starts at four in the morning and will lasts until past sunrise. The winning participants has to take the bag away and carry it to a designated area away from the temple. It's a very hard fought battle, most participants end up bruised up and some even bloody. In the tussle, it's not unusual for a loincloth fall off. In that case, the participant have to put it back in order to continue the fight. Since the audience is mixed, it would be considered indecent to carry on without their loincloth.

As a side note, in 2007, the promotional poster was deemed too racy for public viewing. Some even considered it to be of a sexual nature, as a result all posters were removed from public places. It turned out to be somewhat of a positive publicity since it gained national news coverage and attracted more spectators. They are more careful with promotional material now.

You can find more details here; https://www.kokusekiji.jp/index.html

Getting there

The site is about the same distance from the Mizusawa Station or the Mizusawa-Esashi Shinkansen Station but there is no bus nor public transit to get there. You need a car or taxi to get there. From the shinkansen station take Route 14 south for about 7 kilometers, you'll get to a T intersection, that's Route 343, turn left and follow the signs to the temple.

From Mizusawa Station, take Route 343, it starts near the station, follow it south to the temple.

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Malcome Larcens

Malcome Larcens @malcome.larcens

I grew up in Quebec, Canada and studied electronics in college, never worked in that field. Moved to Vancouver in the early 80's where I found my real passion, cooking. I ran my own restaurant for 14 years after that worked as a financial advisor for 4 years, I really enjoyed that too but we had to move to Japan for family reasons. After moving to Japan I started teaching English and French. I enjoy teaching too but most of all I enjoy challenges, moving here was challenging but really interesting. Another challenge that I had been thinking about for about 20 years was renovating a house, so for the last 2 years that is what I have been doing. I bought a 25 year old house and am bringing it to modern standards in terms of comfort and earthquake strength. In my time off I like cycling, hiking and snowboarding in winter. Of course I still enjoy cooking. Hope you like my articles.