大乘起信論義記 3.120

3.120

真如熏習義有二種。云何為二？一者、自體相熏習，二者、用熏習。自體相熏習者，從無始世來，具無漏法備，有不思議業，作境界之性。依此二義恒常熏習，以有力故，能令眾生厭生死苦、樂求涅槃，自信己身有真如法，發心修行。

The meaning of the perfuming of tathatā is twofold. What are the two? First, the perfuming of its own essence and marks; second, the perfuming of its function. The perfuming of its own essence and marks means that, from beginningless time, it is fully endowed with untainted dharmas and possesses inconceivable activity, acting as the nature of objective realms. Always perfuming based on these two meanings, because it has power, it can cause sentient beings to feel revulsion toward the suffering of birth-and-death, happily seek nirvāṇa, confidently believe that their own bodies have the dharma of tathatā, and give rise to the aspiration to cultivate practice.