असौ वा आदित्यो देवमधु तस्य द्यौरेव तिरश्चीनवँशोऽन्तरिक्षमपूपो मरीचयः पुत्राः ॥ १ ॥
In plain words
The sun yonder is truly the divine honey. For this honey, heaven serves as the horizontal crossbeam, the intermediate space is the honeycomb itself, and the sunbeams are the bees.
Close to the Sanskrit
That sun yonder is indeed the divine honey. Of it, heaven is indeed the crossbeam, the atmosphere is the honeycomb, and the rays are the sons.