na prahṛiṣhyet priyaṁ prāpya nodvijet prāpya chāpriyam
sthira-buddhir asammūḍho brahma-vid brahmaṇi sthitaḥ||20||

Meaning : The knower of Brahman, firmly established in Brahman, does not rejoice upon obtaining what is dear, nor feel disturbed upon obtaining what is not dear. Such a person has a steady intellect (sthira-buddhi) and is free from delusion (asammūḍha). They remain firmly situated in the Supreme Reality (Brahman).