Giving wealth in service of the Lord, your profits will always increase. Thus you save yourself from repeated birth and death.
Every living being is anxious for full freedom because that is his transcendental nature. And this freedom is obtained only through the transcendental service of the Lord.
Srimad Bhagavatam 1.6.37,
Hammer every thought in your mind thinking of how to serve Krishna.
Material sense gratification, sinful activity kills the propensity to serve Krishna.
The Lord can be served by any ingredient, even the most common commodity — a flower, a leaf, a fruit or a little water, which are available in any part of the universe and without cost and thus the Lord is served universally by the universal entities.
Srimad Bhagavatam 2.9.36,