金光明經文句記 3.23

3.23

初、明三因果。四諦是理，因果通依；四念是行，修之在因；四德本有，證之在果。非此三義，莫顯常宗。

First, clarifying the three causes and effects. The four truths are the principle, upon which cause and effect universally rely; the four applications of mindfulness are the practice, cultivated in the cause; the four virtues are fundamentally inherent, realized in the fruit. Without these three meanings, the eternal theme cannot be revealed.