俱舍論記 3.20

3.20

「境於識中至於法亦爾」者，釋。夫增上用最勝自在，眼於所發了色識中最勝自在。一於了眾色為通因故，謂一眼根能與了別眾色諸識為通因故。二識隨眼根有明昧故，謂根強識明、根弱識昧故名增上，為通因故名最勝，有明昧故名自在；或有明昧故名最勝，為通因故名自在；或通因、明昧俱名最勝自在。色即不然，二相違故。一非通因，謂青等色但能生青等識，不能生黃等識。二非隨色境有明昧故，謂不隨境有強弱故識有明昧，或有境弱識強，如觀青色；或有境強識弱，如觀日等。由二相違，故不立根，乃至意根於法亦爾。

"Objects in relation to consciousness... [up to] the same applies to dharmas": this explains it. Sovereign efficacy means preeminent and self-determined power. The eye is preeminent and self-determined regarding the consciousness that discerns visible form which it engenders. First, because it serves as a common cause for discerning manifold visible forms; that is, a single eye faculty can serve as a common cause for consciousnesses discerning manifold forms. Second, because consciousness varies in clarity and dullness following the eye faculty; that is, when the faculty is strong the consciousness is clear, and when the faculty is weak the consciousness is dull; hence it is called sovereign. Because it serves as a common cause it is called preeminent, and because it determines clarity and dullness it is called self-determined; or, because it determines clarity and dullness it is called preeminent, and because it serves as a common cause it is called self-determined; or both being a common cause and determining clarity and dullness are called preeminent and self-determined. Visible form is not so, because of two contrary facts. First, it is not a common cause: blue form can only generate a consciousness of blue and cannot generate a consciousness of yellow and so forth. Second, consciousness does not vary in clarity and dullness following the object: that is, consciousness does not have clarity or dullness following the strength or weakness of the object; sometimes when the object is weak consciousness is strong, as when viewing blue form; sometimes when the object is strong consciousness is weak, as when looking at the sun and the like. Because of these two contrary facts, it is not established as a faculty; and so on, up to the mind faculty regarding dharmas, which is likewise.