釋禪波羅蜜次第法門 2.46

2.46

Answer: Indeed so; the heterodox and the correct are difficult to distinguish and cannot be taken definitively. When a sign appears, only an excellent master recognizes it; the matter must be decided face to face and cannot be recorded in writing. Therefore, when practitioners first repent, they must stay close to a good friend, a person who distinguishes the heterodox from the correct. Furthermore, when it comes to seeing signs, even when they are seen suddenly, it is still difficult to know whether they are heterodox or correct; if one follows the texts and sets one's mind to seek them, one will mostly fall into demonic influence.