大乘起信論略述 2.59

2.59

[Treatise:] It is not permanent, not blissful, not self, and not pure.
[Exposition:] This reveals through contrast the meaning of the virtues of purity being fully complete. Here it should say: If the mind has movement, it is not permanent, blissful, and so forth; because the mind-nature is free from movement, it has the meaning of being permanent, blissful, self, and pure. If the mind has movement, it transmigrates through the six destinies, so it is not permanent; being the suffering of conditioning, it is not blissful; being driven by afflictions, it is not self; and its nature is defiled, so it is not pure. The mind-nature is unmoving, reversing these four, which is the meaning of being permanent, blissful, self, and pure.