首楞嚴義疏注經 8.56

8.56

此獲勝德，即所證理顯也。現謂顯發。理智行三名密圓淨，即涅槃三德也。一一德中具一切法，三一無礙，故稱為妙。此三種法諸佛所證，是佛果德，攝盡十方三世佛法。今日於此一念顯現，通達無礙，故云皆現其中。

"This refers to obtaining supreme virtues, which is the manifestation of the principle realized. 'Appear' means to become manifest. Principle, wisdom, and practice are termed the secret, the perfect, and the pure; these are the three virtues of nirvāṇa. Each single virtue is endowed with all dharmas, and the three and the one are unobstructed; therefore, they are termed 'wondrous'. These three kinds of dharmas are realized by all Buddhas, are the virtues of the fruit of Buddhahood, and encompass all the Buddhadharmas of the ten directions and the three times. Now, they are manifested in this single thought, penetrating without obstruction; hence it is said, 'all appear within it.'"