Bhagavad Gita on Happiness

BG 2.55

श्री भगवानुवाच

The Blessed Lord said, "When a man completely casts off, O Arjuna, all the desires of the mind and is satisfied in the Self by the Self, then he is said to be one of steady wisdom."

BG 2.64

रागद्वेषवियुक्तैस्तु विषयानिन्द्रियैश्चरन्।

But the self-controlled man, moving among objects with the senses restrained and free from attraction and repulsion, attains peace.

BG 5.22

ये हि संस्पर्शजा भोगा दुःखयोनय एव ते।

The enjoyments that arise from contact are only sources of pain, for they have a beginning and an end, O Arjuna; the wise do not rejoice in them.

BG 6.7

जितात्मनः प्रशान्तस्य परमात्मा समाहितः।

The Supreme Self of him who is self-controlled and peaceful remains balanced in cold and heat, pleasure and pain, as well as in honor and dishonor.

BG 6.17

युक्ताहारविहारस्य युक्तचेष्टस्य कर्मसु।

Yoga becomes the destroyer of pain for him who is moderate in eating and recreation (such as walking, etc.), who exercises moderation in action, and who is moderate in sleep and wakefulness.

BG 14.17

सत्त्वात्सञ्जायते ज्ञानं रजसो लोभ एव च।प्रमादमोहौ तमसो भवतोऽज्ञानमेव च

From Sattva arises knowledge, and greed from Rajas; heedlessness and delusion arise from Tamas, and also ignorance.