釋禪波羅蜜次第法門 1.90

1.90

2. Establishing the three dharmas as gates in accordance with convenience and ease: If one cultivates dhyāna based on the breath, there are two conveniences: first, quickly attaining dhyāna concentration; second, easily awakening to impermanence. Taking form as the gate also has two conveniences: first, being able to sever sensual desire; second, easily understanding falsehood. As for mind as the gate, this also has two conveniences: first, being able to subdue all defilements; second, easily awakening to the principle of emptiness.