（1） The diamond-mind， or adamantine mind. The hardness and sharpness of the vajra as metaphor for the wisdom of the bodhisattva， which penetrates everything and is incorruptible. （2） A term for the state of the final stage of the ten bhu^mis， also known as the adamantine absorption 金刚喻定. （3） In the True Pure Land sect 净土真宗 the mind of deep faith in other-power 他力.