法華文句記 1.17

1.17

言「哢引」者，以譬顯也。講哢家之引故名哢引。亦可正哢亦得名引，如歌引舞序義可知。故正說如哢、二序如引，故引亦歌也。謂譚述也，亦引發義。古人章疏以胤音之，便作胤釋。又迷章草以哢為呼，以胤為徹，魚魯之謬自古有之，徹字則成兩重之誤。

Regarding "prelude and overture" (longyin): this is elucidated by metaphor. The overture of a lecturing and reciting master is called a prelude-overture. It is also possible that the main prelude is also called an overture, just as the prelude to a song and dance makes the meaning of preface evident. Thus the main preaching is like the prelude, and the two prefaces are like the overture; hence overture is also singing. It means narrating and reciting, and also has the sense of initiating. Ancient commentaries, glossing it with the sound yin (lineage), simply interpreted it as succession (yin). Moreover, confusing cursive script, they took long (prelude) for hu (calling), and yin (succession) for che (penetrating); errors like confusing fish (yu) and Lu (lu) have existed since antiquity, and the character che becomes a double mistake.