In plain words
The Gopīs believed that there is no place where Kṛṣṇa is not, no form that is not Kṛṣṇa. Their hearts were soft as butter, holy, sweet and full of Ānanda. That is why Kṛṣṇa stole their hearts. One day Yaśodā caught hold of Kṛṣṇa: “Kṛṣṇa! When I give you butter you will not eat it, but you go to the Gopīs' houses, steal butter and eat it. Do you not like the butter in our house? Is other people's butter so tasty to you?” she demanded. What is the inner meaning of this? What Kṛṣṇa stole was not butter. He stole the pure hearts of the Gopīs. The Gopīs have no attachment to the body.
“Though mothers-in-law wail aloud, and husbands whet their knives, they do not open their mouths, they do not grow angry, they run off nowhere, the Gopīs take no fright; like a picture in a book there stayed within them Kṛṣṇa...”
But Yaśodā did have attachment to the body. She had also the Ahaṅkāra and the feeling of “mine” that say, “This boy is my son; I am Kṛṣṇa's mother.” Ahaṅkāra is man's great enemy. So you must give no room to Ahaṅkāra and must not foster the feeling of “mine”.
What satisfies Paramātma is a perfect offering
In the land of Italy there lived a great devotee called Anthony. He made violins and lived on the money that came from selling them. But it took him a year to make a single violin. Once his friends came and turned on him in anger: “Anthony! If you take a year to make one violin, how will you support your family?” Anthony, not in the least upset, “My dear friends! God is perfect. So if God is to be satisfied, whatever work we do, whatever word we speak, all of it must be perfect. So only when every violin I make is perfect will God be satisfied. Only when God is satisfied am I satisfied too. God's Ānanda is what matters to me. These worldly joys last but a moment,” he said. To satisfy Paramātma, who is perfect, a perfect offering is needed. We must not ask God for worldly desires, saying, “I want this, I want that.” Nor must we pray for some illness to be cured. For the whole world is full of illnesses. The illness everyone has, you have too. The whole world is full of wealth, of mansions and of every comfort. Why should you pray to God for these again! Pray for whatever it is you do not have. What is it that you do not have? You have no Śānti; you have no Ānanda. These are with God alone. For such Śānti, for such Ānanda, you must pray to God. They are not things that someone else gives; God alone must give them. God alone is the Lord of Śānti and Ānanda.
The link with the Ātma is spirituality
When any devotee comes to have faith in God, unbelief too follows close behind it, like its shadow. Some trust God completely one moment, and the very next moment act against that trust. Only a handful stand firm in every circumstance. Only when you have such steady Bhakti and steady Buddhi will divinity become clear to you.