स यो मनो ब्रह्मेत्युपास्ते यावन्मनसो गतं तत्रास्य यथाकामचारो भवति यो मनो ब्रह्मेत्युपास्तेऽस्ति भगवो मनसो भूय इति मनसो वाव भूयोऽस्तीति तन्मे भगवान्ब्रवीत्विति ॥ ७.३.२ ॥
In plain words
He who worships the mind as Brahman moves at will so far as the mind reaches, who worships the mind as Brahman. "Is there, sir, anything greater than mind?" "There is indeed something greater than mind." "Tell me that, sir."