大乘百法明門論開宗義決 1.112

1.112

於所觀義有正智生等者。義有二種。一義者境也。如遠見烟比厨中煙。定知遠處必有於火。於其觀火境之上有正智生。二義者理也。如佛弟子立聲無常。所作性故。如瓶盆等。於此所觀無常理上有正智生。

Regarding "correct knowledge arises regarding the object/meaning contemplated": "artha" (義) has two kinds. First, artha is an objective domain: as when seeing smoke in the distance and comparing it to smoke in a kitchen, one definitely knows there must be fire in the distant place; correct knowledge arises upon that object of observing fire. Second, artha is a principle: as when a disciple of the Buddha establishes that sound is impermanent, because it is produced, like a vase or a pot; correct knowledge arises upon this contemplated principle of impermanence.