According to the inscription, Narimori reestablished the holy shrine of the temple which had been burnt to ashes in July, 1171 because it was difficult for the temple to reestablish it.
ここには承安元年7月の火災によって大山寺の宝殿等が焼失、独力での再建が難しい寺に代わって成盛が再建したと記されている。