sukhaḥ

दुःखेष्वनुद्विग्नमनाः सुखेषु विगतस्पृहः

sukheṣhu — in pleasure

Unshaken in sorrow, without craving in pleasure, free of attachment, fear and anger — such a one is called a sage, steady in wisdom.

युञ्जन्नेवं सदाऽऽत्मानं योगी विगतकल्मषः

sukhena — easily

Keeping the self constantly so joined, freed of faults, the practitioner easily reaches the boundless happiness of touching Brahman.

अद्वेष्टा सर्वभूतानां मैत्रः करुण एव च

sukhaḥ — happiness

Without hatred toward any being, friendly and compassionate, free of “mine” and of “I”, the same in pain and pleasure, patient;

सत्त्वं सुखे सञ्जयति रजः कर्मणि भारत

sukhe — to happiness

Clarity binds to happiness, restlessness to action, Arjuna. Inertia, covering over knowledge, binds to heedlessness.

समदुःखसुखः स्वस्थः समलोष्टाश्मकाञ्चनः

sukhaḥ — happiness

the same in pain and pleasure, at home in the self, taking clod, stone and gold alike; the same toward what is wanted and unwanted, steady, the same under blame and praise;