華嚴經義海百門 1.78

1.78

二、開二諦者，謂如見塵相圓小，幻有現前，是世諦；了塵無體，幻相蕩盡，是真諦。今此世諦之有，不異於空相，方名世諦；又真諦之空，隨緣顯現，不異於有相，方名真諦。又空依有顯，即世諦成真諦也；由有攬空成，即真諦成俗諦也。由非真非俗，是故能真能俗，即二而無二，不礙一二之義歷然，經云「於解常自一，於諦常自二，通達此無礙，真入第一義。」

Second, unfolding the two truths: Seeing the dust mote's characteristics as round and small, with illusory existence appearing before one, is conventional truth; understanding that the dust mote has no essence, with its illusory characteristics swept away, is paramārtha-satya. Now, this existence of conventional truth is not different from the characteristic of emptiness; only then is it called conventional truth. Furthermore, the emptiness of paramārtha-satya manifests in accordance with conditions and is not different from the characteristic of existence; only then is it called paramārtha-satya. Furthermore, emptiness is revealed relying on existence, which is conventional truth becoming paramārtha-satya; because existence gathers emptiness to be accomplished, paramārtha-satya becomes conventional truth. Because they are neither ultimate nor conventional, they are therefore able to be both ultimate and conventional; being two yet without duality, the meanings of one and two are distinctly evident without obstruction. A sūtra says: 'In understanding it is always singular; in the truths it is always twofold. Penetrating this without obstruction, one truly enters the ultimate meaning.'