अन्नं न परिचक्षीत ।तद्व्रतम् ।आपो वा अन्नम् ।ज्योतिरन्नादम् ।अप्सु ज्योतिः प्रतिष्ठितम् ।ज्योतिष्यापः प्रतिष्ठिताः ।तदेतदन्नमन्ने प्रतिष्ठितम् ।स य एतदन्नमन्ने प्रतिष्ठितं वेद प्रतितिष्ठति ।अन्नवानन्नादो भवति ।महान्भवति प्रजया पशुभिर्ब्रह्मवर्चसेन महान् कीर्त्या ॥ १ ॥
In plain words
Let him not despise food: that is the vow. The waters indeed are food, and light is the eater of food. Light is founded upon the waters, and the waters are founded upon light. So this food is founded upon food. He who knows this food founded upon food stands firm; he comes to have food and to be an eater of food; he becomes great in offspring and cattle and in the lustre of Brahman, great in renown.