नि भूतानि जायन्ते ।येन जातानि जी-वन्ति ।यत्प्रयन्त्यभिसंविशन्ति ।तद्वि-जिज्ञासस्व ।तद्ब्रह्मेति ।स तपोऽतप्य-त ।स तपस्तप्त्वा ॥ १ ॥
In plain words
That from which all beings are born, by which they live once born, and toward which they move and into which they dissolve—seek to know that. That is Brahman. He performed deep austerity. Having practiced austerity...
Close to the Sanskrit
From which beings are born, by which having been born they live, towards which they depart and into which they merge—desire to know that specifically; that is Brahman. He performed austerity. He, having performed austerity...