Mantra 2

प्राणो वै ग्रहः ।सोऽपानेनातिग्रहेण गृहीतः ।प्राणेन हि गन्धाञ्जिघ्रति ॥३,२.२ ॥

In plain words

"The breath is a grasper, and it is grasped by the out-breathing as the over-grasper; for by the breath one smells odours.