大般涅槃經義記 4.19

4.19

In the text, the opening phrase, "Nor should one engage in frivolous discourse and disputation," directly exhorts the abandonment of existence. Abandoning existence is the same as the previous [abandonment], and hence it says "nor." Previously one was exhorted to abandon non-existence, and now one is further exhorted to abandon existence, which is why it says "again." If one grasps at definitive existence, one's words do not accord with the Dharma, which is termed frivolous discourse. Grasping at existence contravenes emptiness; therefore one is exhorted to abandon it. Because of this fault, one is exhorted that one "should not." "Only seeking understanding, etc." teaches the adoption of the correct meaning; abandoning sentiments to focus on principle is called "only seeking"; what is sought according with principle is precisely discussing the true nature of all dharmas. From "ordinary persons" onwards, it adduces the fault to exhort abandonment; saying that "in frivolous discourse and disputation they do not understand" shows that they are incapable of understanding.