大乘起信論義記 3.77

3.77

In the question, the words 'If the mind ceases, how can there be continuity?': if when perceptual objects cease the substance of the mind also ceases, then since the avidyā of the three subtle marks is not yet exhausted while the substance of the mind has already perished, relying on what phenomenon could there still be continuity? This doubts the conjoined mind. 'If there is continuity, how can one speak of ultimate cessation?': if one says that because the substance of the mind does not cease, it causes avidyā to continue, then since the substance of the mind does not cease, avidyā would continue permanently; how could the path of the antidote attain ultimate cessation? This doubts the unconjoined mind. In the answer, both are answered together.