大方廣佛華嚴經疏 3.18

3.18

二對辯開合者，題中七字，有十事五對：一教義相對，謂經之一字是能詮教，大等六字是所詮義。二就義中法喻一對，謂大等是法，華嚴是喻。三就法中人法一對，謂大方廣是所證無障礙法，佛是能證之人，亦名境智一對。四就法中揀持一對，大之一字是揀方、廣是持，即揀大異小、揀實異權、揀果異因，亦是體用一對。大方是體，大方無隅故。廣即是用。五就人中，借下華字以喻其因，即因果一對，佛是果故。是以單用華字，則但喻因。若合以華嚴，則亦喻上之四字，至下當明。

Second, concerning juxtaposing and distinguishing separation and combination: within the seven characters of the title, there are ten items forming five pairs:
First is the pair of teaching and meaning: the single character 'sūtra' is the teaching that can express, while the six characters 'Great' and the rest are the meaning that is expressed.
Second, within the meaning, is the pair of Dharma and metaphor: 'Great' and the rest are Dharma, and 'Flower Adornment' is the metaphor.
Third, within the Dharma, is the pair of person and Dharma: 'Great, Broad, and Expansive' is the unobstructed Dharma that is realized, and 'Buddha' is the person who can realize it; it is also called the pair of object and wisdom.
Fourth, within the Dharma, is the pair of selecting and retaining: the single character 'Great' selects, while 'Broad' retains—that is, selecting the great to distinguish it from the small, selecting the real to distinguish it from the provisional, and selecting the fruit to distinguish it from the cause; it is also the pair of essence and function. 'Great and Broad' is the essence, for 'the great square has no corners'; 'Expansive' is the function.
Fifth, within the person, borrowing the lower character 'Flower' to serve as a metaphor for the cause constitutes the pair of cause and fruit, for 'Buddha' is the fruit. Therefore, using the single character 'Flower' alone only serves as a metaphor for the cause. If combined as 'Flower Adornment', it also serves as a metaphor for the four characters above, as will be clarified below.