首楞嚴義疏注經 5.111

5.111

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.