They contain some of the remains of the monk Ninsho who founded Gokuraku-ji Temple (in Kamakura City) and dedicated himself to the revival of religious precepts and work benefitting the community in the Kamakura Period, and which were, according to his will, buried at Gokuraku-ji Temple, Kakuan-ji Temple (in Yamato-Koriyama City, Nara Prefecture) and Chikurin-ji Temple.
鎌倉・極楽寺(鎌倉市)の開山であり、鎌倉時代に戒律の復興と社会事業に尽力した僧・忍性の遺骨は、遺言により、極楽寺、額安寺（奈良県大和郡山市）、竹林寺の3箇所に分骨された。