起信論疏筆削記 19.44

19.44

答下，二、答，二：初、歎難解。墮邪網者，以邪為正，故《楞嚴》云：若作勝解，即受群邪。退失善根者，以正為邪故。由是取之捨之，二俱有過，是故難也。如蹈火受焚，見寶不取，故二皆失，失故無進趣之日也。

From "Answer" onward is the second: the answer, which has two parts: first, lamenting the difficulty of understanding. "Falling into the net of heterodoxy" means taking heterodoxy as orthodoxy; hence the Śūraṅgama-sūtra says: "If one takes it as superior understanding, one will succumb to the various heterodoxies." "Regressing from and losing roots of goodness" means taking orthodoxy as heterodoxy. Because both taking and leaving have faults, it is therefore difficult. It is like treading on fire and being burned, or seeing a jewel and not taking it: thus both are lost, and because they are lost, there is no day of progressing forward.