sthitaprajna

sanskrit : स्थितप्रज्ञ ; Unaffectedness.  

प्रजहाति यदा कामान् सर्वान् पार्थ मनोगतान् ।
आत्मन्येवात्मना तुष्ट: स्थितप्रज्ञस्तदोच्यते ॥ २-५५ ॥

When one renounces all desires born of the mind and rejoices by himself on his own Self, he is considered a sthita-prajna.

दुःखेष्वनुद्विग्नमनाः सुखेषु विगतस्पृहः ।
वीतरागभयक्रोधः स्थितधीर्मुनिरुच्यते ॥ २-५६ ॥

“He who remains unruffled in duhkhas and un-yearning, unhankering amidst sukhas, who is constantly given to sublimate and transcend raga, dvesha and bhaya (desire, resentment and fear) is a sthitadhi. He is verily a Muni, one given devoutly to rumination.”