Devote your time to the service of the world with faith in the Lord, regardless of its fruits. Then you become blessed. Otherwise though the body may be inactive, the mind will be very busy, committing acts on its own. People with such minds fall prey to karma (consequences) in spite of their not doing anything! When a person has the mind fixed on contemplation of God and the pursuit of truth, though the body and senses do acts that are of service to the world, they won’t be affected by them; though they do actions they are still non-doers of action. This is the lesson from Bhagavad Gita. The heart of the person who doesn’t strive to cultivate the mind with holy thoughts is certain to be the paradise of evil and wickedness. Everyone who hopes to rise to greatness, who seeks one-pointedness and aspires for salvation must bear this in mind.

- Prema Vahini, Ch 72.