大般涅槃經義記 10.143

10.143

自下第五明趣道儀，亦說名為趣道方便。迦葉先問，「畢竟涅槃云何可得」。下佛為辨，明修十想故得涅槃。於中有四：一開章門、二總結嘆、三廣辨釋、四總結嘆。

From here below, the fifth [section] clarifies the manner of proceeding toward the path, also spoken of as the expedient means for proceeding toward the path. Kāśyapa first asks: 'How can ultimate nirvāṇa be attained?' Below, the Buddha explains for him, clarifying that because of cultivating the ten ideations, one attains nirvāṇa. Therein there are four [parts]: 1. opening the chapter headings; 2. concluding praise in summary; 3. broad discrimination and explanation; 4. concluding praise in summary.