大般涅槃經義記 6.38

6.38

就「大空」中，先問，次辯。諸佛菩薩滅觀波若，離一切相、離一切性故名為空。言離相者，如淨醍醐，體雖是有，而無青、黃、赤、白等相。亦如一切眾生心識，體雖是有，而無大、小、長、短等相。此亦如是，無何等相？謂非有相、亦非無相，非非有相、非非無相，非有無俱相，亦無自相、亦無他相，亦無非自他相、亦無自他俱相，如是一切妄心分別，悉不相應。言離性者，此波若中曠備法界恒沙佛法，是諸佛法同一體性，以同體故無有一法別守自性，故名為空。此空深廣，是以言大。又龍樹云「十八空觀名小智慧門，滅觀波若名大智慧門」，大慧體寂故名大空，此義猶是《地經》之中自體本空，智自空矣。「是名」下結。

Regarding "great emptiness": first the question, next the explanation. The prajñā of cessation and observation of all buddhas and bodhisattvas is free from all marks and free from all natures, and is therefore called empty. Being free from marks is like pure ghee: although its substance is existent, it lacks marks such as blue, yellow, red, and white. It is also like the mental consciousness of all sentient beings: although its substance is existent, it lacks marks such as large, small, long, and short. This is also like that: what kind of marks does it lack? It means neither the mark of existence nor the mark of non-existence, neither the mark of non-non-existence nor the mark of non-non-non-existence, nor the mark of both existence and non-existence together; nor the mark of self, nor the mark of other, nor the mark of neither self nor other, nor the mark of both self and other together; all such conceptual discriminations of the deluded mind do not correspond [with it] at all. Being free from nature means: within this prajñā, the buddha-dharmas as numerous as the sands of the Ganges in the dharmadhātu are vastly provided; these buddha-dharmas share the same single essential nature, and because they share the same essence, not a single dharma individually preserves its own self-nature, and hence it is called empty. This emptiness is profound and vast, and is therefore called great. Furthermore, Nāgārjuna said: "The observation of the eighteen emptinesses is called the lesser gate of wisdom; the prajñā of cessation and observation is called the great gate of wisdom." Because the essence of great wisdom is quiescent, it is called the great emptiness; this meaning is precisely that the self-essence is originally empty in the *Daśabhūmika Sūtra*: wisdom is itself empty. "This is named..." and below concludes.