Bhagavad Gita 2.48

Established in yoga, perform action, abandoning attachment, equal in success and failure. Equanimity is called yoga.

योगस्थः कुरु कर्माणि सङ्गं त्यक्त्वा धनञ्जय ।
सिद्ध्यसिद्ध्योः समो भूत्वा समत्वं योग उच्यते ॥

yogasthah kuru karmani sangam tyaktva dhananjaya | siddhy-asiddhyoh samo bhutva samatvam yoga ucyate ||

Established in yoga, perform action, abandoning attachment, equal in success and failure. Equanimity is called yoga.

balanced engagement without being ruled by outcomes. Reduces anxiety about results and fear of failure. Resonates with acceptance of uncertainty and values-based action. This is not indifference; it is engaged but non-obsessive action.