Chandogya Upanishad 5.20

atha yāṃ dvitīyāṃ juhuyāt tāṃ juhuyād vyānāya svāheti vyānas tṛpyati

'And he who offers the second oblation, should offer it to Vyâna (back-breathing), saying Svâhâ. Then Vyina is satisfied,

vyāne tṛpyati śrotraṃ tṛpyati śrotre tṛpyati candramās tṛpyati candramasi tṛpyati diśas tṛpyanti dikṣu tṛpyantīṣu yat kiṃca diśaś candramāś cādhitiṣṭhanti tat tṛpyati tasyānu tṛptiṃ tṛpyati prajayā paśubhir annādyena tejasā brahmavarcaseneti

'If Vyâna is satisfied, the ear is satisfied, if the ear is satisfied, the moon is satisfied, if the moon is satisfied, the quarters are satisfied, if the quarters are satisfied, whatever is under the quarters and under the moon is satisfied. And through their satisfaction he (the sacrificer or eater) himself is satisfied with offspring, cattle, health, brightness, and Vedic splendour.