Bhagavad Gita · Chapter 14: The Three Qualities of Nature

Bhagavad Gita 14.24

samaduḥkhasukhaḥ svasthaḥ samaloṣṭāśmakāñcanaḥ | tulyapriyāpriyo dhīrastulyanindātmasaṃstutiḥ ||

who is the same in pain and pleasure and at home in the self; to whom a clod of earth, a stone, and gold are alike; who is the same toward the pleasant and the unpleasant, steady, and alike in blame and praise;

Modern context

The word svastha is worth noticing. In everyday Hindi and Sanskrit it means 'healthy', but literally it means 'established in the self'. The Gita suggests that real health is being at home in oneself. Such a person is even in pain and pleasure, unmoved by praise and blame, and does not rate gold above clay. Their wellbeing does not depend on circumstances.