摩訶止觀 5.163

5.163

若法行心轉為信行，信行心轉為法行，皆隨其所宜，巧鑽研之。自行有三十二，化他亦三十二，合為六十四安心也。

If the mind of a practitioner of Dharma turns into a practitioner of faith, or the mind of a practitioner of faith turns into a practitioner of Dharma, in all cases one skillfully investigates in accordance with what is appropriate. Self-cultivation has thirty-two, and converting others also has thirty-two, combining to make sixty-four ways of settling the mind.