"Without food, Life cease to exist"
Annadhanam is the sacred tradition of offering/food, and is best form of Dhanam. Annadhanam is one kind of charity where the receiver says: "Enough, Thank you-I am full" which cannot be replaced for anything in the universe. All charity is a selfless act without expecting anything in return, and is accumulated by doing good deeds.
"The world is sustained by food. The giver of food is the giver of life"