請觀音經疏闡義鈔 3.50

3.50

「性淨」下，解假設義也。「性淨」等者，無染而染，故曰本無今起也。「皆是虛假」者，迷理起業，業不離理。業體本無而言業者，虛假施設耳。「實來破虛」者，實即三德密教，虛即惡業。今稟教達理，了業唯心，染即無染。心體本虛，業相無寄，故云皆使清淨。

From "inherently pure" onward, it explains the meaning of "hypothetical." "Inherently pure" and so forth: non-defiled yet defiled, which is why it says "fundamentally absent, now arising." "All are unreal and provisional": being deluded about principle, one gives rise to karma, but karma is never apart from principle. The substance of karma is fundamentally absent, yet when we speak of "karma," it is merely a provisional designation. "The real comes to shatter the unreal": "real" refers to the esoteric teaching of the three virtues; "unreal" refers to evil karma. Now, receiving the teaching and realizing principle, one understands that karma is mind-only, and defilement is itself non-defilement. The essence of the mind is fundamentally unreal, and the characteristics of karma have nowhere to lodge; hence it says "causes all to become pure."