金光明經文句記 4.262

4.262

二、「須實」下，勸更修觀。宜於五陰作二十觀，顯我本性，使空慧明。隨度入處以觀逐之，名處處作。

Second, from "One must actually..." onward, exhorting to further cultivate contemplation: one should practice the twenty contemplations on the five aggregates to reveal the fundamental nature of the self and cause empty wisdom to become clear. Following the places where it transitions and enters, one pursues it with contemplation; this is called "practicing in place after place."