大乘起信論略述 2.43

2.43

[Treatise:] Because the dharma of tathatā […] therefore it has no interruption.
[Exposition:] This explains the rationale of the meaning. "Because the dharma of tathatā constantly perfumes, the deluded mind is extinguished" explains the first aspect: that defiled perfuming is an impermanent dharma arisen from delusion concerning the principle, and therefore it has an extinction; the perfuming of pure dharmas arises in accordance with the principle and is a permanent dharma, and therefore it has no interruption; hence it says "tathatā constantly perfumes," and so forth. "The dharmakāya becomes manifest" and so on answers the subsequent inquiry: if one has not yet become a buddha, the dharmakāya is not yet manifest, and because of perfuming by essence there are defiled characteristics; if one has already become a buddha, the dharmakāya becomes manifest, and because of perfuming by function defilement is extinguished; whereby this pure perfuming is without end.