Also, "Nehan-gyo" is the teaching to prevent people from being trapped by a wrong idea that he/she is the same as Buddha when he/she listens to eternity of bussho (which is already taught in "Hoke-kyo Sutra" (the Lotus Sutra)) by preaching kakureki or ryakko (a lapse of kalpa) practices to help people adhere to precepts as a means.
また方便として隔歴（かくれき）あるいは歴劫（りゃっこう）修行を説いて戒律などを守るように扶け、（『法華経』で既に説いた）仏性の常住不滅を聞いても、自分は仏と同じであるという邪見に堕ちないようにした教えが『涅槃経』である、という。