華嚴經探玄記 13.52

13.52

Third, regarding differentiation by great compassion: in explaining the various non-Buddhists seeking a divergent liberation, it reveals that their sought-after heaven of neither-perception[-nor-non-perception] and so forth are considered nirvāṇa; the bodhisattva contemplates them and sees they are merely phenomena of dependent origination belonging to the branches of existence, not the constant virtue of unconditioned nirvāṇa; therefore, the bodhisattva accordingly gives rise to great compassion.