BṚHADĀRAṆYAKA UPANISHAD · 6.1.11

मनो होच्चक्राम ।
तत् संवत्सरं प्रोष्यागत्योवाच -- कथम् अशकत मद् ऋते जीवितुम् इति ।
ते होचुः -- यथा मुग्धा अविद्वांसो मनसा प्राणन्तः प्राणेन वदन्तो वाचा पश्यन्तश् चक्षुषा शृण्वन्तः श्रोत्रेण प्रजायमाना रेतसैवम् अजीविष्मेति ।
प्रविवेश ह मनः ॥

mano hoccakrāma ।
tat saṃvatsaraṃ proṣyāgatyovāca -- katham aśakata mad ṛte jīvitum iti ।
te hocuḥ -- yathā mugdhā avidvāṃso manasā prāṇantaḥ prāṇena vadanto vācā paśyantaś cakṣuṣā śṛṇvantaḥ śrotreṇa prajāyamānā retasaivam ajīviṣmeti ।
praviveśa ha manaḥ ॥

The mind departed, and having been absent for a year, it came back and said: 'How have you been able to live without me?' They replied: 'Like fools, not knowing with their mind, but breathing with the breath, seeing with the eye, hearing with the ear, generating with seed. Thus we have lived.' Then the mind entered in.

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)