大乘起信論別記 1.55

1.55

「覺於念異」者，異相之中，分別內外，計我我所。此三乘人，皆能了知，內無神我、外無我所。欲明所相心體，為無明眠夢於異相，而今漸與智惠相應，從異相夢少得覺悟，故言覺於念異。由得此覺，六種異相永滅不起，故言念無異相。是覺利益。

"Awakening to the change of thoughts": within the characteristic of change, one discriminates the internal and the external, and posits self and what belongs to self. Practitioners of these three vehicles are all able to fully understand that internally there is no ātman, and externally there is nothing belonging to self. It intends to show that the mind-essence that is characterized had been asleep in avidyā, dreaming in the characteristic of change, but now gradually conforms with wisdom, attaining a slight awakening from the dream of the characteristic of change; hence it says "awakening to the change of thoughts." Because of attaining this awakening, the six kinds of the characteristic of change are extinguished forever and do not arise; hence it says "thoughts have no characteristic of change." This is the benefit of awakening.