In plain words
Draupadī saw it. She tore off the end of the sari she was wearing. She tied a bandage on it. The finger of His right hand was cut. It was Draupadī who wrapped it. The moment they saw this, Satyabhāmā and Rukmiṇī looked into each other's faces. "The care Draupadī has, we did not have! Draupadī's Prema was not in us! We seek only His body. We have no thought at all for His condition or how it affects Him. This is the power of Draupadī's Bhakti and surrender." So they felt ashamed among themselves. Kṛṣṇa saw all this. "That day Draupadī served Me in this way, so I must give her something in return for it," He thought. Always, in this world of Prakṛti, when we want to get some article, we must hand over one thing and receive another. You go to a shop and want a handkerchief; when you hand the man ten rupees, he gives you a handkerchief. That same method is the bond between the devotee and God.
If you offer God even a little, God gives you a result without end. The moment Kucela handed over a fistful of beaten rice, He gave him plenty of fortune. When Satyabhāmā had sold Kṛṣṇa, Rukmiṇī brought one tulasī leaf. Praying:
A leaf, a flower, a fruit or water: Your yielding to the one who has Bhakti, if that is true, may You weigh against this tulasī leaf.
A leaf! What is this leaf? A leaf made of the three guṇas, a bilva leaf: this body. The body made of the sattva, rajas and tamas guṇas is itself a leaf. A flower. The flower of the heart. The pure flower of the heart. The flower of the heart filled with a holy fragrance. A fruit. The fruit of the mind. In this fruit of the mind there is a sweet juice. But the Manas does not know the nature of the sweet juice. The tree does not know the juice in the fruit. The creepers do not enjoy the nectar in the flower. These worldly men cannot taste the sweet juice in the holy scriptures; that is why Rukmiṇī offered that leaf. Because this tulasī leaf was offered, God, the Lord of the cosmos, could be weighed against it. With no expectations of any kind, in a spirit free of expectation, Rukmiṇī went on looking upon Kṛṣṇa. In the same way, with no expectation of any kind, free of expectation, Draupadī made this sacrifice for Kṛṣṇa.