四明十義書 1.96

1.96

《止觀》本立三障四魔為境界，上人却以十乘妙理為所觀。十乘妙理若為所觀境界，即須三障四魔為能觀理智。方知上人是波旬本身、是落迦種子。若不改悔，陷墮非遙。

The Zhiguan originally established the three obstacles and four māras as the realm of objects; you, Venerable Sir, conversely take the wondrous principle of the ten vehicles as what is contemplated. If the wondrous principle of the ten vehicles were the contemplated realm of objects, then the three obstacles and four māras would have to be the principle and wisdom capable of contemplating! Only then do we realize that you, Venerable Sir, are the very body of Pāpīmān, the seed of Naraka. If you do not repent and reform, your fall into perdition is not far off.