摩訶止觀 7.19

7.19

Answer: This is a single meaning expressed in various ways; yet there are distinctions. Opening and obstruction pertain to understanding; gain and loss pertain to practice; characters and non-characters pertain to teaching. The Suvarṇaprabhāsa-sūtra says: "Correct hearing, correct listening, correct discrimination, correct understanding of conditions, and correct ability to awaken and comprehend." Knowing characters and non-characters is correct hearing and correct listening; knowing gain and loss is correct discrimination and correct understanding of conditions; knowing opening and obstruction is the correct ability to awaken and comprehend. Although there are these distinctions, they jointly reveal a single purport.