大般涅槃經義記 2.200

2.200

斷他結中，初明無量眾生如鐵，冷而復熱。「我以慧」下明己能滅，如火燒木永更不生。上來第一問答廣明如來身常，「善哉」已下第二領解，「佛言」已下第三述成。於中初喻，「聖王」喻佛，「素在後宮」喻在閻浮，「或時遊觀在後園」者喻佛息化入大涅槃，「王雖不在諸婇女中」喻佛不在眾生化中，「亦不得言聖王命終」喻佛常存。次合顯法，「如來亦爾」合前聖王素在後宮，「雖不現於閻浮提界」超合不在諸婇女中，「入涅槃」者合遊後園，「不名無常」合不命終。下重顯之，「出無量惱」明其所離，「入涅槃」等彰其所得。於中初明得涅槃樂，「遊諸覺」下得菩提樂。

In cutting off the fetters of others, first it clarifies that innumerable sentient beings are like iron, cooling and then becoming hot again. From 'I, by means of wisdom...' onward, it clarifies that he himself is able to extinguish them, just as fire burns wood so that it permanently does not arise again. The above is the first question and answer broadly clarifying the permanence of the Tathāgata's body. From 'excellent!' onward is the second part, receiving with understanding. From 'the Buddha said...' onward is the third part, confirming and approving. Therein, first is the metaphor: 'holy king' illustrates the Buddha; 'regularly in the inner palace' illustrates being in Jambudvīpa; 'at times wandering and observing in the rear garden' illustrates the Buddha resting his conversion work and entering great nirvāṇa; 'although the king is not among the maidens' illustrates that the Buddha is not among the transformations of sentient beings; 'nor can it be said that the holy king has reached the end of his life' illustrates that the Buddha permanently exists. Next, it matches [the metaphor] to reveal the Dharma: 'the Tathāgata is likewise thus' matches the previous holy king regularly being in the inner palace; 'although not appearing in the realm of Jambudvīpa' skips ahead to match not being among the maidens; 'entering nirvāṇa' matches wandering in the rear garden; 'is not called impermanent' matches not reaching the end of life. Below, it manifests this again: 'emerging from innumerable afflictions' clarifies what he has left behind; 'entering nirvāṇa,' etc., reveals what he has attained. Therein, first it clarifies the attainment of the bliss of nirvāṇa; from 'roaming in the various awakenings...' onward, he attains the bliss of bodhi.