Chapter 5 - Verse 20

न प्रहृष्येत्प्रियं प्राप्य नोद्विजेत्प्राप्य चाप्रियम् ।
स्थिरबुद्धिरसम्मूढो ब्रह्मविद्ब्रह्मणि स्थितः ॥ २० ॥

na prahṛṣyetpriyaṃ prāpya nodvijetprāpya cāpriyam .
sthirabuddhirasammūḍho brahmavidbrahmaṇi sthitaḥ .. 20 ..


He who knows Brahman can neither rejoice on obtaining the pleasant, nor grieve on obtaining the unpleasant,—steady-minded, undeluded, resting in Brahman.
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Pleasant and unpleasant objects can cause pleasure and pain to them only who regard the body as the Self, not to him who sees the pure Self, since the latter never comes by pleasant and unpleasant objects. He is undoubtingly conscious that the Self is free from delusion. He rests in Brahman described above; that is, he does no action, he has renounced all action.