大般涅槃經義記 4.196

4.196

就解脫中，「或說空者是正解脫」合索先陀，「智臣知」下合奉馬等，以正解脫離有相顯，是故就之偏明空義。前辯空義彰其所解，下「不動」等出其所密。於中有三：一明解脫是不動義，初舉，次釋，「是故」下結；二明解脫亦是無相，初舉，次釋，「故名」下結；三明解脫亦是其常不變易義，初舉，次釋，「是故」下結。解脫之中備此多義，佛偏說空是以言密。「或說一切眾生有性」合索先陀，於佛性中備含多義，雖具多義，總名佛性，故似先陀。「智臣當知此是如來說於常法，欲令修常」合奉水等，於多義中偏顯如來說常之意名解密語。「是諸比丘各解」已下合後結文，於中先合，「如彼智臣善知王意」舉喻以帖。上來合竟，下次結之。先結密語，「如是大王亦有密語」牒舉前喻，「何況」已下約之顯佛，「是故」已下結成佛語難解之義。下次結其智人能解，「唯智能解」簡聖異凡，「非凡能信」彰凡異聖。

Regarding liberation, "Or speaking of emptiness as true liberation" matches asking for saindhava; from "The wise minister knows..." downward matches serving a horse and so forth: because true liberation is revealed as free from conditioned marks, it draws upon this to clarify the meaning of emptiness in particular. Previously, explaining the meaning of emptiness showed what was understood; below, "unmoving" and so forth brings out what was secret. Therein are three parts: first, clarifying that liberation has the meaning of being unmoving: first it raises it, next explains it, and from "for this reason..." downward concludes; second, clarifying that liberation is also markless: first it raises it, next explains it, and from "hence it is named..." downward concludes; third, clarifying that liberation also has the meaning of permanence and unchangingness: first it raises it, next explains it, and from "for this reason..." downward concludes. Within liberation these many meanings are fully present; the Buddha speaking particularly of emptiness is why the speech is secret. "Or speaking of all sentient beings having the nature" matches asking for saindhava. Within buddha-nature many meanings are fully contained; although it possesses many meanings, it is generally called buddha-nature, hence it resembles saindhava. "The wise minister should know that this is the Tathāgata speaking of permanent dharmas, wishing to cause them to cultivate permanence" matches serving water and so forth; among the many meanings, particularly revealing the Tathāgata's intention of speaking of permanence is called understanding the secret words. From "These monks each understood..." downward matches the subsequent concluding text. Therein it first matches; "Just as that wise minister knows well the king's intention" adduces the simile to correspond. The matching above is completed; next below it concludes. First it concludes the secret words: "In this way the great king also has secret words" repeats and adduces the preceding simile; from "How much more so..." downward draws upon it to reveal the Buddha; from "For this reason..." downward concludes the meaning that the Buddha's words are difficult to understand. Next below it concludes that the wise person is able to understand: "Only the wise can understand" distinguishes the noble from the ordinary; "It cannot be believed by ordinary people" shows that the ordinary differs from the noble.