四明十義書 1.79

1.79

且如《止觀》引彼經偈，本證陰心能造一切。此有二意：一明陰心本具如來性故（理造）；二明煩惱之儔是如來種（事造）。故云心造如來。若敻指真心能造如來，正當《金錍》旁遮，偏指清淨真如為佛性也。又只知類種，全不識敵對種也。又不可偏執皆由理具方有事用之文，遂立真心造法。須知陰心即理，是理之用。

Now, when the Zhiguan cites that sūtra verse, it is fundamentally to prove that the aggregate mind can create everything. This has two meanings: first, it clarifies that the aggregate mind inherently possesses the Tathāgata nature (creation by principle); second, it clarifies that the cohort of afflictions is the seed of the Tathāgata (phenomenal creation). Therefore it says, "the mind creates the Tathāgata." If you point far off to the true mind as able to create the Tathāgata, that falls right under what the Jinbi peripherally refutes—one-sidedly pointing to pure suchness as the Buddha-nature. Moreover, you only know the category seed, but entirely fail to recognize the adversarial seed. Nor must you one-sidedly cling to the passage stating "only because it is inherent in principle does it possess phenomenal functioning" and thereupon establish that the true mind creates dharmas. You must know that the aggregate mind is identical to principle; it is the functioning of principle.