Shuten OISHI of Federation of New Religious Organizations of Japan pointed out this, when he was invited to the dainehan-zo kaigan-shiki (Opening of the Eyes Ceremony of statue of Great Nirvana) held at Sesshin dojo (concentration hall (used for martial arts training)) in 1957.
昭和32年の接心道場の大涅槃像開眼式に招かれた新日本宗教団体連合会の大石秀典はこの点を指摘した。