首楞嚴義疏注經 4.272

4.272

夢寤之人記夢中事，說雖可爾，取必不可，以所夢境畢竟無故。得菩提者返觀因時，滅諸妄惑，說雖可爾，畢竟無體可斷滅故，將何為妄而推其因？《起信》云「覺心初起，心無初相。」又云「以四相本來平等，同一覺故。」

When a person awakened from a dream recalls matters in the dream, though he may speak of them, obtaining them is certainly impossible, because the realm dreamed of is completely nonexistent. When one who has attained bodhi looks back at the time of the cause, having eliminated all deluded afflictions, though speaking [of it] is permissible, there is ultimately no entity that can be cut off or eliminated; so what would one take as delusion to infer its cause? The Awakening of Faith says: "When the mind's awakening first arises, the mind has no initial characteristic." It also says: "Because the four characteristics are fundamentally equal, they are identical with the one awakening."