The current structure was rebuilt in 1732 to extend the military fortunes of the lord of Sendai, Date Yoshimura. Under the hall's pyramidal roof is a dais on which is the primary object of worship, the Amida Buddha, flanked by four bodhisattvas. The deity Matarajin is tucked away in the rear as a secret Buddha. Matarajin is a protector of Buddhist praxis and halls, and has long been worshipped as a harvest deity in this area. The hidden Buddha is normally kept behind closed doors, and is shown to the public only every 33 years. Matarajin's festival day is Januray 20, and is accompanied by traditional devotions and the Ennen no Mai longevity rites.