Based on the above, religious schools whose principal object of worship is Nichiren think "Nehan-gyo" as a treasured heirloom that saves life, which is the theory of eternity of busho preached in "Hoke-kyo."
上記の内容から、日蓮を本仏とする宗派では、『涅槃経』は『法華経』に説く仏性常住の理という命をたすける重宝とする。