स यश्चित्तं ब्रह्मेत्युपास्ते चित्तान्वै स लोकान्ध्रुवान्ध्रुवः प्रतिष्ठितान्प्रतिष्ठितोऽव्यथमानानव्यथमानोऽभिसिध्यति यावच्चित्तस्य गतं तत्रास्य यथाकामचारो भवति यश्चित्तं ब्रह्मेत्युपास्तेऽस्ति भगवश्चित्ताद्भूय इति चित्ताद्वाव भूयोऽस्तीति तन्मे भगवान्ब्रवीत्विति ॥ ७.५.३ ॥
In plain words
He who worships thought as Brahman attains worlds of thought that are firm, being himself firm; founded, being himself founded; untroubled, being himself untroubled. He moves at will so far as thought reaches, who worships thought as Brahman. "Is there, sir, anything greater than thought?" "There is indeed something greater than thought." "Tell me that, sir."
The commentators
Chāndogyopaniṣadbhāṣyam· bhāṣya
चितान् उपचितान्बुद्धिमद्गुणैः स चित्तोपासकः ध्रुवा- नित्यादि च उक्तार्थम् ॥
In plain words
The worlds built of mind and gathered through intelligent qualities—that worshipper of the mind attains steady worlds and the rest. The meaning of this has already been explained.
Close to the Sanskrit
The worlds composed of mind, accumulated through intelligent qualities—that worshipper of the mind attains steady worlds, and so forth; this has its meaning already explained.