कतमे षडित्यग्निश्च पृथिवी च वायु-श्चान्तरिक्षं च आदित्यश्च द्यौश्चैते षडेतेहीदँ सर्वँ षडिति ॥ ७ ॥
In plain words
‘And which are the six?’ Fire, Earth, Wind, the space between, the Sun, and the Sky — these six. Because everything in this world folds into just these six, they are simply called ‘the six.’
Close to the Sanskrit
'Which are the six?' — Fire, and Earth, and Wind, and mid-space, and the Sun, and Heaven — these are the six. For in these six, all this is six[-fold].