妙法蓮華經文句 4.77

4.77

三、約圓教四門橫釋四句者，空門，一空一切空，即開佛知見；有門，一有一切有，即示佛知見也；亦空亦有門，一切亦空亦有，即悟佛知見也；非空非有門，一切非空非有，即入佛知見。能通則四，所通則一，開示悟入是能通之門，所知所見是所通之理也。

Third, in terms of the four gates of the perfect teaching horizontally interpreting the four phrases: The gate of emptiness—one being empty, all are empty—opens the Buddha's knowledge and vision. The gate of existence—one existing, all exist—demonstrates the Buddha's knowledge and vision. The gate of both emptiness and existence—all being both empty and existent—awakens to the Buddha's knowledge and vision. The gate of neither emptiness nor existence—all being neither empty nor existent—enters the Buddha's knowledge and vision. The gates that can penetrate are four, but that which is penetrated is one: opening, demonstrating, awakening to, and entering are the gates that can penetrate; that which is known and seen is the principle that is penetrated.