Kaṭha Upaniṣad 2.22

2.22

aśarīraṃ śarīreṣu anavastheṣv avasthitam /
mahāntaṃ vibhum ātmānaṃ matvā dhīro na śocati //

21. Sitting, he proceeds afar;
Lying, he goes everywhere.
Who else than I (_mad_) is able to know
The god (_deva_) who rejoices and rejoices not (_madāmada_)?
22. Him who is the bodiless among bodies,
Stable among the unstable,
The great, all-pervading Soul (Ātman)—
On recognizing Him, the wise man sorrows not.