請觀音經疏闡義鈔 2.74

2.74

「四句」，即四門。「是無常等」者，等取兩亦雙非。常即有門，無常即空門，餘二可知。「是事實」等者，以己解一門為是，斥他解三門為非。問：月蓋屬何行人？答：經是方等，不可定屬。應知月蓋本是第十，或示為圓教初心，或通示前八。推理起見，名為夜叉。見不出五，故經云「而有五眼」。「五見」，如前記。「鉤牙」等者，牙既從下向上，能傷害人。業亦從見而起，傷害法身。因見起業，為生死因。業體黑闇，故云如墨。

"Four propositions" means the four gates. "It is impermanence and so forth": "and so forth" includes both-is and neither-is. Permanence is the gate of existence; impermanence is the gate of emptiness; the other two can be known accordingly. "This is true and real" and so forth: considering one's own understanding of one gate to be right, and rejecting others' understanding of the three gates as wrong. Question: Which practitioner does Candraprabha belong to? Answer: The sūtra belongs to the Vaipulya, so he cannot be definitively categorized. One should know that Candraprabha is fundamentally the tenth; or he manifests as a beginner in the perfect teaching, or generally manifests the previous eight. Deriving views from reasoning is called a yakṣa. Views do not exceed five, so the sūtra says "yet having five eyes." "Five views" is as noted previously. Regarding "hooked fangs" and so forth: since fangs emerge from below upward, they can harm people. Karma also arises from views and harms the dharmakāya. Karma arising from views becomes the cause of birth and death. The essence of karma is dark, hence it is said to be "like ink."