大般涅槃經義記 4.115

4.115

下明共中，先偈、後釋。偈文之中，前偈上半明佛自住解脫山頂，即是常義；下半見凡，即共無常。一切有為生滅理齊故說為「平」，是凡住處目之為「地」，凡未入理故名「曠野」，佛於此處常見凡夫。就後偈中，初之三句明佛日住智慧臺殿，除滅憂患，即是常義，「亦見生憂」名共無常，由見眾生心常憂念名見生憂。

Below, in explaining coexistence, there are first verses and then an explanation. In the verse text, the first half of the preceding verse explains that the Buddha himself abides on the summit of the mountain of liberation, which is the meaning of permanence; the lower half shows his seeing ordinary beings, which is coexistence with impermanence. Because the principle of arising and ceasing of all conditioned [dharmas] is uniform, it is spoken of as "level"; this is the dwelling place of ordinary beings, designated as "ground"; because ordinary beings have not entered the principle, it is called a "wilderness"; the Buddha constantly sees ordinary beings in this place. In the latter verse, the first three lines explain that the Buddha daily abides in the terrace-pavilion of wisdom, eradicating sorrow and suffering, which is the meaning of permanence; "and also sees beings' sorrow" is called coexistence with impermanence, for through seeing sentient beings, his mind is ever mindful of sorrow, which is called seeing beings' sorrow.