Kaṭha Upaniṣad 2.21

2.21

āsīno dūraṃ vrajati śayāno yāti sarvataḥ /
kas taṃ madāmadaṃ devaṃ mad anyo jñātum arhati //

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.