Srimad Bhagavatam Canto 10, Chapter 81, Text 09

SB 10.81.9

nanv etad upanitam me
 parama-prinanam sakhe
tarpayanty anga mam visvam
 ete prthuka-tandulah
 
Translation: 
 
“My friend, have You brought this for Me? It gives Me extreme pleasure. Indeed, these few grains of flat rice will satisfy not only Me but also the entire universe.”
 
Purport: 
 
Srila Prabhupada writes in Krsna, the Supreme Personality of Godhead: “It is understood from this statement that Krsna, being the original source of everything, is the root of the entire creation. As watering the root of a tree immediately distributes water to every part of the tree, so an offering made to Krsna, or any action done for Krsna, is to be considered the highest welfare work for everyone, because the benefit of such an offering is distributed throughout the creation. Love for Krsna becomes distributed to all living entities.”
Srimad Bhagavatam Canto 10, Chapter 81, Text 08
Srimad Bhagavatam Canto 10, Chapter 81, Text 10