無量壽經連義述文贊 2.208

2.208

經曰「目覩其色」至「無諸惱患」者，述云：此後、見聞獲利。有二：此、對境得利也。由昔諸根不陋願力之所得，故云六根清。而言深法忍者，即達無相生性故。

On the sūtra passage from "Those whose eyes behold its colour" to "free of all distress and affliction": The Commentary states: This second part concerns obtaining benefit through seeing and hearing. There are two parts: here, obtaining benefit upon encountering the sense-objects. Because it was obtained through the power of the past vow that the sense faculties would not be deficient, it says the six faculties are clear. And when it mentions the "tolerance of deep dharmas," it refers to penetrating the signless nature of arising.