大方廣圓覺修多羅了義經略疏 2.894

2.894

然世境違順，麁重易明，唯就法門最難覺察。但言為法瞋彼度此，不知此心元是我相。

Yet worldly conditions, whether adverse or favorable, are coarse and heavy, hence easy to recognize; only with regard to the Dharma gate is it most difficult to perceive. They merely say that for the sake of the Dharma they resent that person or deliver this person, not knowing that this mind is originally the mark of the self.