Bhagavad Gita 12.13

Unhating toward beings, friendly and compassionate, without possessiveness or I-making, equal in pain and pleasure, forbearing.

अद्वेष्टा सर्वभूतानां मैत्रः करुण एव च । निर्ममो निरहङ्कारः समदुःखसुखः क्षमी ॥

advesta sarva-bhutanam maitrah karuna eva ca | nirmamo nirahankarah sama-duhkha-sukhah ksami ||

Unhating toward beings, friendly and compassionate, without possessiveness or I-making, equal in pain and pleasure, forbearing.

A character sketch of regulation, not a demand that a depressed person smile.