釋禪波羅蜜次第法門 5.39

5.39

Furthermore, within such concentrations, there may be corruptions and counterfeits that the practitioner should verify. Their marks are not one; two matters are briefly set forth: first, the concentration mind is excessively bright; second, it is excessively dark. Both are deviant concentrations. As for excessive brightness: when entering concentration, one sees external objects of blue, yellow, red, and white, or sees the sun, moon, stars, palaces, and such things; or for a day, up to seven days, without emerging from dhyāna-concentration, one sees all things as if having attained supernormal knowledges. This is deviant; one must quickly dispel it. Second: if entering this concentration is dark and suddenly without perception, no different from deep sleep, this is a mind-lacking notion-state, which can cause the practitioner to generate an inverted mind; one must quickly cast it away. These briefly explain the marks of deviant concentrations; the obstacles and difficulties within cannot be fully transmitted in writing.