二諦義 2.41

2.41

問：何故但解此名耶？解云：此四名具通別廣狹。通別廣狹攝一切盡，故但解此四名也。眾生國土等世間風俗，但是風俗之法，唯是無常，所以為狹。若是浮虛則廣，浮虛只是虛假，明一切諸法皆是虛假，一切世間乃至諸佛菩薩所說所現皆是虛假，是故廣也。代謝隔別亦爾。代謝但是無常流動法故狹，隔別則通常無常、空有，常無常空有隔別也。故〈佛母品〉云「示五陰世間、十八界世間、十力世間、一切種智世間。」世間即隔別，故隔別廣也。

Question: Why explain only these names? Explanation: These four names possess shared and distinct, broad and narrow. The shared, distinct, broad, and narrow encompass everything completely; therefore, only these four names are explained. The worldly customs of sentient beings, lands, and so forth are merely customary phenomena and are exclusively impermanent; therefore, they are narrow. Insubstantiality, however, is broad: insubstantiality is simply provisional existence, clarifying that all phenomena are provisional, and that all worlds, up to and including what is taught and manifested by the Buddhas and bodhisattvas, are provisional; therefore, it is broad. Succession and differentiation are also like this. Succession is merely the impermanent, fluctuating phenomena, hence it is narrow; differentiation, however, extends to both the permanent and impermanent, emptiness and existence—the differentiation of permanent and impermanent, emptiness and existence. Thus the "Chapter on the Mother of the Buddha" says: "It demonstrates the realm of the five aggregates, the realm of the eighteen elements, the realm of the ten powers, and the realm of all-aspect omniscience." 'World' (realm) is precisely differentiation; therefore, differentiation is broad.