Verse 7

एकस्मिन्विद्यतेऽध्वान्ते नीहार इव भास्करे ।इदं प्रथममेवाच्छे कथमात्मनि संस्थितम्

In plain words

does it exist in the One, which is without darkness, like mist in the sun? How did this, from the very first, come to rest in ātman, which is clear?