成唯識論演祕 2.215

2.215

答：由發惑思能熏力勝合所熏種，後後體增；如水、土等有勝功能令麥等種生芽、莖等種種多果，惑等種體既復倍增，有依、無依福業事等亦體增也。二云，增者但種子上能防惡惑七支功能而倍倍增。何所以者？要現熏習種方生故。又若體增後時現生從何種起？不可有生、有不生者，種勢等故；後亦不得多種共生，違世間故，故但用增。

Answer: Because the intention that generates the precepts has superior perfuming power, in combination with the perfumed seed, the substance increases in successive moments; just as water, earth, and so forth have superior efficacy to cause seeds of barley and the like to sprout shoots, stems, and various multiple fruits. Since the substance of the seeds of the precepts and so forth is further doubled, meritorious actions with a basis and without a basis also increase in substance. The second says: That which 'increases' is merely that the efficacy upon the seeds to prevent evil precepts of the seven factors doubles and redoubles. What is the reason for this? Because a seed can be produced only by present perfuming. Furthermore, if the substance increased, from which seed would the manifest [action] arise in a later moment? It is unacceptable that some arise and some do not, because the potency of the seeds is equal; nor can multiple seeds subsequently arise together, because this contradicts worldly reality. Therefore, it is only the efficacy that increases.