瑜伽論記 7.23

7.23

第五阿那波那念觀中，初問，次解，後結成其義。解中有二，初略標；後廣釋。前中先解念，後釋所緣。阿那者此云持來，即是入息，波那者此云持去，即是出息。泰云：唐名持息，來持息去。

In the fifth [section], the contemplation of mindfulness of ānāpāna, it first asks, next explains, and finally concludes the meaning. In the explanation there are two parts: first, a brief indication; and later, an extensive explanation. In the former part, it first explains mindfulness, and later explains its cognitive object. Āna here means 'bringing in', which is the in-breath; pāna here means 'carrying away', which is the out-breath. Tai says: 'In the Tang language it is called bringing breath in and carrying breath out.'