法智遺編觀心二百問 1.151

1.151

問：始從《發揮》至《答疑書》皆以談於妙性真理便為觀心，因何改云「觀六識妄心成三諦真心」？此義因誰解耶？

Question: From the Fahui up to the Dayi shu, you consistently took discussing the wondrous nature and true principle to be contemplation of mind. Why did you change to say, 'Contemplating the deluded mind of the six consciousnesses brings about the true mind of the three truths'? From whom did you learn this interpretation?