首楞嚴義疏注經 5.111

5.111

意明空有二邊既不能解，當須中道正觀照無始結根，非有非無、不異而異，見全無明之法性、斷全法性之無明，不斷而斷、非證而證，方得解成。

The meaning clarifies that since both extremes of emptiness and existence cannot untie it, one must rely on the correct contemplation of the Middle Way to illuminate the beginningless knotted root: neither existent nor nonexistent, neither different nor identical, seeing the Dharma-nature that is wholly avidyā, and severing the avidyā that is wholly Dharma-nature; severing without severing, realizing without realizing—only then is untying accomplished.