大方廣圓覺修多羅了義經略疏 1.177

1.177

上五字所詮，謂圓覺是法，大方廣是義，故文中標結指陳，一一只言圓覺，不言大等。下六字屬能詮，謂經是教法。修多羅了義，歎教勝能。經有五名，首題唯二，良以宗本體用是法義之宏綱、詮旨功能是言象之皎鏡，事周義盡，須建五名，簡要標題，且存兩號。大等三字是體、相、用，各有二義：

The first five characters are what is expressed: "Perfect Enlightenment" is the Dharma, and "Great Expansive" indicates its meaning. Hence in the text, whether indicating or summarizing, each reference mentions only Perfect Enlightenment, and does not mention "Great" and the rest. The latter six characters pertain to that which expresses: "Sūtra" is the teaching. "Sūtra of Ultimate Meaning" praises the superior capacity of the teaching. The scripture has five titles, but the opening title contains only two. Truly it is because the central root, essence, and function are the grand framework of the Dharma and its meaning, while the expression, purport, and efficacy are the clear mirror of words and imagery. When matters are comprehensive and meanings are exhausted, five titles must be established; for a concise and essential title, two designations are provisionally retained. The three characters "Great" and so forth are essence, attribute, and function, each possessing two meanings: