大般涅槃經義記 1.13

1.13

"Lifespan Chapter": According to the extensive-chapter recension, it is called the "Introductory Chapter"; according to the brief-chapter recension, it is called the "Lifespan Chapter." The establishment of chapters in sūtras generally follows three patterns: some follow the extensive, some follow the brief, or some are named according to their marks. Here, calling it "Lifespan" follows the brief. After Kāśyapa's verse-request below, it explains that through the causes and conditions of loving-kindness, compassion, and non-killing, long life is obtained; the title is designated in view of this, and hence it is called the "Lifespan Chapter." A limit of life is termed "longevity" (shou), while the continuity of spiritual wisdom is designated as "life" (ming). A "chapter" (pin) means a division; it can also be said that a pin is a category: according to what is clarified, those of the same class are gathered together, hence called categories. This sūtra has thirteen distinct chapters in total; this chapter is the beginning, and is therefore called the first.