大般涅槃經集解 18.65

18.65

案僧亮曰：惑者謂常則不滅、滅則不常，釋所以是苦行也。云何捨身者，樂則不應捨而捨，故知是苦，此釋所以是壞苦也。寶亮曰：此下第三還舉後倒，結前句也。智秀曰：正明樂上起苦見為倒也。有三意：第一約理辨其是倒、第二經家結其成倒、第三出彼見之意也。

Sengliang says: "The deluded person thinks that what is permanent does not perish, and what perishes is not permanent; this explains why it is the suffering of conditioning. As for 'how could he discard the body?': if it were bliss, he should not discard it, yet he discards it, so we know it is suffering; this explains why it is the suffering of destruction." Baoliang says: "From here down is the third, returning to adducing the latter inversion to conclude the earlier clause." Zhixiu says: "This properly clarifies that giving rise to the view of suffering regarding bliss is an inversion. There are three points: first, discriminating that it is an inversion according to principle; second, the compiler of the sūtra concludes that it constitutes an inversion; third, presenting the intention of that view."