Bhagavad Gita on Purpose of Life

BG 3.35

श्रेयान्स्वधर्मो विगुणः परधर्मात्स्वनुष्ठितात्।

Better is one's own duty, though devoid of merit, than the duty of another well discharged. Better is death in one's own duty; the duty of another is fraught with fear.

BG 4.7

यदा यदा हि धर्मस्य ग्लानिर्भवति भारत।

Whenever there is a decline of righteousness and an increase of unrighteousness, O Arjuna, then I manifest Myself.

BG 4.8

परित्राणाय साधूनां विनाशाय च दुष्कृताम्।

For the protection of the good, for the destruction of the wicked, and for the establishment of righteousness, I am born in every age.

BG 18.45

स्वे स्वे कर्मण्यभिरतः संसिद्धिं लभते नरः।स्वकर्मनिरतः सिद्धिं यथा विन्दति तच्छृणु

Each person devoted to their own duty attains perfection. How they attain perfection while being engaged in their own duty, hear now.

BG 18.46

यतः प्रवृत्तिर्भूतानां येन सर्वमिदं ततम्।स्वकर्मणा तमभ्यर्च्य सिद्धिं विन्दति मानवः

He from whom all the beings have evolved and by whom all this is pervaded, worshipping Him with his own duty, one attains perfection.

BG 18.47

श्रेयान्स्वधर्मो विगुणः परधर्मात्स्वनुष्ठितात्।स्वभावनियतं कर्म कुर्वन्नाप्नोति किल्बिषम्

Better is one's own duty, even if it is destitute of merits, than the duty of another well performed. He who does the duty ordained by his own nature incurs no sin.