成唯識論演祕 6.465

6.465

答：《疏》云，等流增上性同易感，此念熏已，後即能生，非如異熟，彼難招故。二云：此如業種定世不同，十因、二果不同世故，而立命根說依親種生第八識一期功能。若許世同隨熏生果，一期生種義即不成，所引、所生世各有異故。自種生果雖無有盡，隨業可說一期別故。

Answer: The Commentary states that niṣyanda and adhipati have identical natures and are easily induced; once perfumed in this moment, they can immediately generate in the next, unlike vipāka, which is difficult to bring about. The second [view] states: This, like the karmic bījas, definitely has a different lifetime, because the ten causes and two fruits are in different lifetimes, and the establishing of the life-faculty is said to rely on the direct bīja's functioning to generate the eighth consciousness for a single lifespan. If it were permitted to be the same lifetime and generate fruit immediately upon perfuming, the meaning of a bīja generating a single lifespan would not be established, because the projected and generated lifetimes would each be different. Although generating fruit from one's own bīja is inexhaustible, in accordance with karma one can speak of the distinction of a single lifespan.