If one offers Me with love and devotion a leaf, a flower, a fruit or water, I will accept it (Bhagavad-gītā 9.26).
Here the connection is being made between food and bhakti. There is another way of saying that: connection is being made between food and the Lord and the connection is bhakti. One could say, “Well, I have lots of bhakti, lots of devotion for the Lord, so much that I don’t even need to offer food. I just offer my love, I just offer my prayers. It says here, and Prabhupada says that Krishna eats through the sound so I don’t really need to offer something physical, I’ll just make a nice prayer and Krishna will hear that and through that He will eat.” But Krishna is more clever than that. He’ll know you are cheating.