宗鏡錄 90.5.6

90.5.6

thus arising and ceasing is the meaning of permanence. Furthermore, because nature is precisely characteristics, non-arising and non-ceasing is the meaning of impermanence. Because characteristics are precisely nature, arising and ceasing is the meaning of permanence. Mutually negating each other, both are negated; mutually accomplishing each other, both are established. Entering nirvāṇa between the twin trees has precisely this meaning! Permanence and impermanence being so, self, bliss, purity, and so forth, up to all dharmas, are all like this. Thus, in every place one enters great nirvāṇa, not merely beneath the twin trees. If one does not comprehend this principle, one will entirely fall into extremes and heterodoxy, and in every speck of dust one will completely constitute saṃsāra, not limited to Jambudvīpa. If one enters the mirror of the source, then all dharmas tend toward impermanence. Impermanence gathers all dharmas without remainder, and its principles are inexhaustible; only then is it true impermanence, completely collecting all meanings into a single consistency.