成唯識論掌中樞要 2.154

2.154

Because of the difference between coarseness and subtlety among the dharmas of the levels. How does that difference of coarseness and subtlety come to be established? It must rely on the differentiation of dharmas bound by defilement. Uncontaminated dharmas detached from defilement, relying on the dharmas of this level, are also distinct; what has been severed belongs to this category of having defilement, and therefore is subsumed under that level. When it says 'having defilement,' this means having actively manifesting defilement. Therefore, although a body residing below possesses defilement in the form of seeds of the three realms, it is not said to belong to the three levels. When it says 'detached from defilement,' it is based on the meaning of being born above, which means one no longer belongs to the previous level; it does not say that once one has separated from this defilement, one no longer belongs to this level. The text of the Cheng weishi lun is correct, differing from the Yogācārabhūmi. The Yogācārabhūmi only discourses relying on the second dhyāna and above, as reconciled by the third master above.