二諦義 2.20

2.20

次第二就因緣釋義者，明俗真義、真俗義。何者？俗非真則不俗、真非俗則不真。非真則不俗，俗不礙真；非俗則不真，真不礙俗。俗不礙真，俗以真為義；真不礙俗，真以俗為義也。

Next, the second, explaining the meaning with reference to causes and conditions, clarifies the conventional as the meaning of the ultimate, and the ultimate as the meaning of the conventional. Why? If the conventional were not the ultimate, it would not be conventional; if the ultimate were not the conventional, it would not be ultimate. If it were not the ultimate, it would not be conventional: the conventional does not obstruct the ultimate; if it were not the conventional, it would not be ultimate: the ultimate does not obstruct the conventional. The conventional does not obstruct the ultimate: the conventional takes the ultimate as its meaning; the ultimate does not obstruct the conventional: the ultimate takes the conventional as its meaning.