入楞伽心玄義 1.26

1.26

開者，於一教法開為二門：一真性平等、二虛相差別。其真性有二義：一隨緣義、二不變義。經云「不染而染，染而不染。」是此二義也。其虛相亦有二義：一不存義、二不壞義。經云「諸法無所有，如是有世界」，「即非世界，是名世界」等，是此義也。

Regarding unfolding: a single teaching dharma is unfolded into two gates: first, the equality of the true nature; second, the distinction of illusory characteristics. Its true nature has two meanings: first, the meaning of according with conditions; second, the meaning of remaining unchanging. A sūtra states: "Without being defiled, it is defiled; being defiled, it is undefiled." These are the two meanings. Its illusory characteristics also have two meanings: first, the meaning of non-subsistence; second, the meaning of non-destruction. Sūtras state: "All dharmas are nonexistent, yet such worlds exist," and "That which is not a world is called a world," and so forth; these are this meaning.