Bhagavad Gita: Chapter II: Verse - 51

Freedom from births and deaths

Karmajam Buddhi Yuktahi Phalam Tyaktva Maneeshinaha|
Janma Bandha Vinirmukthaha Padam Gacchantyanamayam||

The beings endowed with an intellect that is united with the essence within will renounce the results of their actions. By doing this, they become free from the cycle of births and deaths and reach that state of mind which is changeless.
- Swahilya Shambhavi.

Bhagavad Gita: Chapter II - Verse - 50

Unite the intellect with the divine

Buddhiyukto Jayateeha Ubhe Sukrita Dushkrite|
Tasmaad Yogaaya Yujyasva Yogah Karma Sukaushalam||

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The three important words in this verse has been taken as the motto of the Indian Administrative Service - Yogah Karma Sukaushalam.
Doing one's action well unto perfection is Yoga. With the intellect connected to the divine within in Yoga, and not being concerned about the effect of one's action good or bad, but focussing 100 per cent on the action itself is yoga, says Sri Krishna.
You strive towards doing action in such a state of yoga, exhorts Sri Krishna to Arjuna, pointing out to him that Yoga is nothing but skill in action. - Swahilya Shambhavi.