Mantra 15

न तत्र सूर्यो भाति न चन्द्रतारकं नेमा विद्युतो भान्ति कुतोऽयमग्निः ।तमेव भान्तमनुभाति सर्वं तस्य भासा सर्वमिदं विभाति ॥ १५ ॥

In plain words

There the sun does not shine, nor the moon and stars; these lightning-flashes do not shine there -- how then this fire? Him alone, shining, everything shines after; by his light all this shines forth.