大方廣佛華嚴經隨疏演義鈔 63.52

63.52

As for the Commentary saying, "is called the deeply purified mind": upward, this phrase completes the two equalities: because equality is discussed in terms of the Dharma as tathatā, it is termed "deep"; because equality is discussed in terms of purified dharmas, it is termed "purified"; hence it is called "deeply purified mind." Second, downward, it completes the mind of contemplative understanding of this stage. Thus these five characters divide into two equalities: the two characters ["deeply purified"] are what the purification relies upon, and the "deeply purified mind" is the mind that relies upon them. Therefore it next cites the treatise saying, "within equality, the mind attains purification." The term "deeply purified mind" comes from the treatise's sūtra text; the present sūtra simply says "purified mind."