大方廣佛華嚴經隨疏演義鈔 69.31

69.31

疏「此則入於」下，以《起信》意總收上義，《起信》所入即是本覺故。論云「所言覺者，謂心體離念。離念相者，等虛空界無所不遍，法界一相，即是如來平等法身。依此法身，說名本覺。」釋曰：今入虛空，即入法身本覺也。下引論會釋，結成無生法忍之止觀耳。

Regarding the commentary's "This, then, enters..." and below: this gathers up the above meanings with the purport of the Awakening of Faith, because what is entered in the Awakening of Faith is original enlightenment. The treatise states: "What is called enlightenment means that the essence of mind is free from thought. The characteristic of being free from thought is like the realm of empty space, leaving nothing unpervaded; the single characteristic of the dharmadhātu is precisely the Tathāgata's universal dharmakāya. In reliance on this dharmakāya, it is named original enlightenment." Explanation: Now, entering empty space is precisely entering the dharmakāya of original enlightenment. Below, it cites the treatise to harmonise and explain, concluding the śamatha and vipaśyanā of the anutpattikadharmakṣānti.