Chapter 6 · verse 32 · gita.yoga.org

Bhagavad Gita 6.32

आत्मौपम्येन सर्वत्र समं पश्यति योऽर्जुन। सुखं वा यदि वा दुःखं सः योगी परमो मतः

He who, through the likeness of the Self, O Arjuna, sees reality everywhere, be it pleasure or pain, is regarded as the highest Yogi.