अथ खलूद्गीथाक्षराण्युपासीतोद्गीथ इति प्राण एवोत्प्राणेन ह्युत्तिष्ठति वाग्गीर्वाचो ह गिर इत्याचक्षतेऽन्नं थमन्ने हीदंसर्वंस्थितम् ॥ १.३.६ ॥
In plain words
Now let a man worship the syllables of the word udgītha. Ud is the breath, for by the breath one rises up. Gī is speech, for they call words girah. Tha is food, for on food all this rests.