AT A GLANCE
Why go?
Aizen-in (愛染院, full temple name Daibi-san Aizen-in) is a small Shingon temple of the Chisan branch tucked into the mountain farming hamlet of Irima, in Nishikawa town, Yamagata Prefecture. Like many rural Japanese temples it is quiet and unassuming from the road, but its origins carry a remarkably evocative story tied to one of the most violent episodes in Japanese religious history.↗↗
The temple's name refers to Aizen Myoo, the fiery-red 'wisdom king' of desire and devotion in esoteric Buddhism, and the grounds are administered within the Shingon Chisan school whose head temple is Chishaku-in in Kyoto. Founded in 1917 (Taisho 6), Aizen-in is young as temples go, yet the image at its heart is said to be far older.↗↗
A principal image born of persecution
Local temple records preserve an unusual provenance for the main image here. According to the town's cultural-heritage survey, Aizen-in's principal deity is Dainichi Nyorai (the Cosmic Buddha), brought from a temple called Dainichi-ji up the Oizawa valley. Dainichi-ji and its affiliated halls were, in 1873 (Meiji 6), caught up in the haibutsu kishaku—the wave of anti-Buddhist suppression that forced many temples across northern Japan to surrender their names and merge with Shinto shrines. Dainichi-ji reportedly had to give up its Buddhist identity and became an administrative office of the Tsuruoka-sha, under the Dewa Three Mountains pilgrimage; when that happened, its Dainichi image was moved out for safekeeping and, the account goes, eventually found its way to this small hall in Irima, where it remains the honzon today. The survey itself flags the story as traditional and of unverified authenticity, but it is exactly the kind of quiet, local memory that gives rural temples their depth.
