大乘起信論略述 1.101

1.101

論。云何為四至覺照義故　述曰。次下別釋。別釋四義。即分為四。此初也。如實空鏡者。標其名也。言如實者。即真體也。真德不虛故言如實。所言空者。對妄得名。以本覺體無妄。法空無妄故云如實空。以無妄故其體明淨。喻如淨鏡。遠離已下辯釋其義。倒心妄境本不相應故云遠離心境界相。以此心境本無所有不現覺中猶如龜毛不現鏡中。故言無法可現。無可現故心境妄法望於本覺非所照。覺望心境非能覺照。所照既無。能照無故。故言非覺照義也。此顯無有遍計所執。實質可現故非覺照。下言境界於中現者。依他似現亦不相違。

[Treatise:] What are the four?... the meaning of an awakened illumination.
[Commentary:] Next below is the specific explanation. In specifically explaining the four meanings, the text is divided into four sections. This is the first.
“The mirror of reality-as-such emptiness” gives its name. “Reality-as-such” is the ultimate essence itself. Because ultimate virtue is not illusory, it is called “reality-as-such.” What is called “emptiness” acquires its name in contrast to delusion. Because the essence of original awakening is devoid of delusion, and dharmas are empty and without delusion, it is called “reality-as-such emptiness.” Because it is devoid of delusion, its essence is luminous and pure, compared by analogy to a pure mirror.
From “departed from” onward, the text analyzes and explains its meaning. The inverted mind and deluded objects are fundamentally not in concordance; hence it says, “departed from the marks of the mind’s objects.” Because this mind and these objects are fundamentally nonexistent, they do not appear in awakening, just as hairs on a tortoise do not appear in a mirror; thus it says, “there are no dharmas that can appear.” Because there is nothing that can appear, the deluded dharmas of mind and objects, relative to original awakening, are not what is illuminated; and awakening, relative to mind and objects, is not what can cognize and illuminate. Since what is illuminated does not exist, that which can illuminate does not exist either; hence it says, “it does not have the meaning of an awakened illumination.”
This demonstrates that there is no imagined real entity that can appear; thus it is not an awakened illumination. When it is stated below that objects appear within it, this refers to their dependent-origination seeming appearance, which also involves no contradiction.