二諦義 3.23

3.23

問：他二諦一體不得並，汝今照有即照無亦是一體，云何得並耶？解云：他義有礙。有即空，即失有；空即有，即失空。故不得並。今只有即是空、空即是有。有即空，空不壞有；空即有，有不動空。故得並也。二者二不二橫竪並。二不二，不二二。只二即不二、只不二即二，無二異不二、無不二異二，故不壞假名說諸法實相，不動等覺建立諸法。若二異不二，則壞假名說實相。不壞假名說實相，故二即不二，所以二不二橫竪並也。

Question: In the other position, the two truths having a single substance cannot be simultaneous; now your illuminating existence being illuminating non-existence is also a single substance—how can they be simultaneous? Answer: The other position has obstructions. If existence is emptiness, one loses existence; if emptiness is existence, one loses emptiness. Therefore, they cannot be simultaneous. Here, merely existence is emptiness, and emptiness is existence. Existence being emptiness, emptiness does not destroy existence; emptiness being existence, existence does not disturb emptiness. Therefore, they can be simultaneous. Second is the horizontal-vertical simultaneity of duality and non-duality. Duality is non-duality; non-duality is duality. Duality itself is just non-duality; non-duality itself is just duality. There is no duality distinct from non-duality, and no non-duality distinct from duality. Therefore, without destroying provisional designations, one expounds the real mark of all dharmas; without disturbing equal awakening, one establishes all dharmas. If duality were distinct from non-duality, one would destroy provisional designations to expound the real mark. Without destroying provisional designations one expounds the real mark; therefore duality is just non-duality. This is why duality and non-duality are horizontally and vertically simultaneous.