成唯識論述記 6.310

6.310

述曰：下廣解有二：初釋前難；後辨差別，此初也。「勇」表念念高勝，非如染法，設雖增長，望諸善品皆名為退，亦不名進，無益進故。「進」謂進成聖者身故。「悍表精純」，簡四無記無覆淨也。彼雖加行作意修習，而非精純，不應正理，故不名「精」；復非染故，乍可名「純」。今此精純即總釋也。

The Commentary states: The detailed explanation below has two parts: first, resolving the previous objection; second, distinguishing the varieties. This is the first. 'Valiant' indicates being high and superior thought-moment by thought-moment, unlike defiled dharmas, which, even if they increase, are all called 'regression' with respect to wholesome factors and are not called 'advancement,' because there is no beneficial advancement. 'Advancement' means advancing to accomplish the body of a noble one. 'Resolute indicates unadulterated purity,' which excludes the four non-defiled neutral states. Although they may be cultivated through preparatory attention, they are not unadulterated and pure, not according with correct principle; therefore they are not called 'unadulterated.' Moreover, because they are not defiled, they might provisionally be called 'pure.' Here, 'unadulterated and pure' serves as the general explanation.