金剛般若波羅蜜經註解 1.152

1.152

此即文意由前施寶得福而來，前以無量大千世界七寶布施，得福雖多，然非離性，則是貪等煩惱染因，有為福報故。此遂以世界微塵為喻，塵界乃無情之物，不生貪等煩惱染因，是則有為福報不及塵界之無情，況持說此經是遠離煩惱之因，能取菩提而不勝耶？

The meaning of this text arises from the previous mention of giving treasures to obtain merit. Previously, giving the seven treasures of boundless trichiliocosms, though the merit obtained is great, is yet not separate from [conditioned] nature; thus it is an afflicted, defiled cause of greed and the like, being a conditioned retribution of merit. Here, then, worlds and motes of dust are used as a metaphor. Dust and worlds are insentient objects that do not give rise to the afflicted, defiled causes of greed and the like; as such, conditioned retributions of merit do not even measure up to the insentience of dust and worlds, so how could upholding and expounding this sūtra—which is the cause of being far removed from afflictions and able to attain bodhi—fail to surpass them?