It is not possible to love Kṛṣṇa perfectly, to render service to Kṛṣṇa, because He is unlimited. There is a process, worshiping the Ganges in India. The Ganges River is considered sacred river. So they worship the Ganges, the river Ganges, by taking water from the Ganges and offering it. Suppose in a small pot like this, either pot or your handful, you take some water from the Ganges and with your devotion and mantra you offer to the Ganges water.
So you take a glass of water from the Ganges and offer it to the Ganges, what is there, gain and profit or loss or gain for the Ganges? If you take a glass of water from the Ganges and again offer it, so what is the gain and profit of Ganges? But your process, your faith, your love for mother Ganges, "Mother Ganges, I offer you this little water," that is accepted.
Similarly, what we have got to offer Kṛṣṇa? Everything belongs to Kṛṣṇa. Now we have offered these fruits. Do the fruits belong to us? Who has produced these fruits? Have I produced? Is there any brain of the human being who can produce fruits, grains, milk? They're very great scientist. Now let them produce. The cow is eating grass and delivering you milk.
So now, by scientific process, why don't you transform grass into milk? Still the rascals will not agree that there is God. You see? They have become so rascal: "Science." And what is your science, nonsense? You see the cows are eating grass and delivering you milk. Why don't you give to your wife and take milk? Why do you purchase? But if you offer this grass to a human being, she will die.