大方廣佛華嚴經隨疏演義鈔 83.10

83.10

The commentary states: "Deeply entering nirvāṇa, he is thus able to manifest extinction." Having attained non-abiding nirvāṇa, he is able to accomplish great deeds. Regarding "deeply entering saṃsāra, hence the manifestation of extinction is not real": awakening to the nature of saṃsāra is itself naturally pure nirvāṇa; therefore one knows that the manifestation of extinction is not a real extinction, because in accordance with nature, he is constantly present. Regarding "Sixth, the dharmakāya": first, through the conjunction of tathatā and cognition, it possesses the virtues of the dharmakāya, and hence is said to "fill the dharmadhātu," the dharmadhātu being that which is filled. Below, in terms of the body of reality-nature (dharmatākāya), it is spoken of as the "essence of the Buddha".