大乘百法明門論開宗義決 1.6

1.6

Regarding "Fully explaining the ultimate and conventional, mutually revealing existence and emptiness, etc.": Among the five categories of dharmas, the first four dharmas fully explain the saṃvṛti-satya; the fifth, the asaṃskṛta, fully explains the paramārtha-satya. The first five kinds of dharmas reveal existence; the latter twofold selflessness reveals their emptiness. Since the paramārtha-saṃvṛti, existence and emptiness, are not separate in substance, these paramārtha-saṃvṛti are neither existent nor empty. By not clinging to the two extremes, one attains the madhyamā-pratipad.