大乘入道次第開決 1.114

1.114

麁重為因能生諸染者。麁重有二。一二障種。故唯識論云。二障種子立麁重名。性無堪任違細輕故。二謂障種。所引身中無堪任性。與五蘊法不一不異。而離五蘊無別自性。若無此者身必細輕。違細輕故亦名麁重。故唯識云。或二所起無堪任性。今於此中說後非前。有麁重故能生過染。故瑜伽云。有過患義是麁性義。過患增多性故名為麁。不安穩性以為麁重性。是故麁重能生染也。

Regarding "heavy unruliness being the cause that can give rise to all defilements": heavy unruliness is twofold: first, the seeds of the two hindrances. Thus the Cheng weishi lun says: "The seeds of the two hindrances are given the name 'heavy unruliness' because their nature lacks malleability and is contrary to subtlety and lightness." Second, it refers to the lack of malleability within the body induced by the hindrance-seeds, which is neither identical to nor different from the five aggregates, yet apart from the five aggregates has no separate intrinsic nature. If this were absent, the body would certainly be subtle and light; because it opposes subtlety and lightness, it is also called heavy unruliness. Thus the Cheng weishi lun says: "Or the lack of malleability arising from both." Now in this context, the latter is spoken of, not the former. Because there is heavy unruliness, it can give rise to faults and defilements. Thus the Yogācārabhūmi says: "Having the meaning of faults is the meaning of the coarse nature; because the nature of faults is abundant, it is called coarse. A state of unease constitutes the nature of heavy unruliness." Therefore, heavy unruliness can give rise to defilements.