無量壽經連義述文贊 2.69

2.69

經曰「深諦善念」至「窮其涯底」者，述云：此後、歎證理勝也。諦者，審察。法海者，一真法界。即後得智深思諦觀稱真法界，故云善念。無分別智窮達深真盡其奧實，故云究涯底。

On the passage where the sūtra states, "Deeply discerning and mindfully attentive..." up to "exhausting its depths": The commentary states: This is, following that, praising the superiority of realizing the principle. "Discerning" means scrutinizing. The "ocean of dharmas" is the one true realm of reality (dharmadhātu). That is, the subsequently attained wisdom deeply reflects on and discerningly contemplates the true realm of reality, hence called "mindfully attentive." The non-conceptual wisdom thoroughly penetrates the profound truth and exhausts its esoteric reality, hence called "exhausting its depths."