大方廣佛華嚴經隨疏演義鈔 37.6

37.6

Regarding the Commentary's statement, "If one takes wisdom to be Buddha-nature, it is the revealing cause": this concludes the above meaning and introduces the point below that the five aggregates are primary and generative, and cannot be called revealing. That the five aggregates are called generative means that they can generate all dharmas, and are thus called generative causes. Now, since by relying on the five aggregates one can attain bodhi, how could they not be generative causes? Just as milk generates curd, and as grain generates sprouts, both are generative causes.