본원력 (本願力) 또는 대원업력 (大願業力)이라고도 말함. 부처님께서 보살이실 때 세운 본원을, 정토신앙 (淨土信仰)에서는 아미타불의 구제력 (救濟力)을 말하며, 지장보살이 중생의 구제를 위해 세운 48 대서원 (大誓願)과 같은 힘

The power of vow or aspiration: A great power of vow such as the one made by Sakymuni Buddha when he was a Bodhisattva in the former life, or Amitabha Buddha's power of deliverance in the Land of Ultimate Bliss, or the power of forty-eight great vows made by the Earth Treasury King of Great Vow Bodhisattva to save all sentient beings in Hell.