大方廣佛華嚴經疏 37.13

37.13

3. Clarifying their essential nature: Although there are thirty-seven categories, they take only ten dharmas as their root: namely, faith, morality, mindfulness, diligence, concentration, wisdom, pliancy (praśrabdhi), joy, equanimity, and thought (saṃkalpa). Because faith has two, morality three, mindfulness expands into four, and diligence, concentration, and wisdom each have eight, while the remaining four have one each, they constitute thirty-seven categories. Again, condensing these ten, they take three aggregates as their essence: morality is non-communicating form (avijñapti-rūpa), the factor of joy is sensation (vedanā), and the rest are all the aggregate of formations (saṃskāra). Among the five classes of dharmas, only two serve as essence: form and mental factors. If one includes their concomitants, they encompass the five aggregates; if one takes their cognitive objects, they encompass all dharmas. The detailed presentation of these distinctions is as found in the Dazhidulun, fascicles 21–22 and 53, the Yogācāra, fascicles 28–29 and 45, and the Abhidharmasamuccaya-vyākhyā, fascicle 10. The explanations below rely on these various treatises.