Satyabhama is a competitor of Srimati Radharani’s, but she always desires to come to the standard of Srimati Radharani. Radharani is so expert in all affairs that all the damsels of Vraja come to learn arts from Her. She is so extraordinarily beautiful that even the goddess of fortune and Parvati, the wife of Lord Siva, desire elevation to Her standard of beauty. Arundhati, who is known as the most chaste lady in the universe, desires to learn the standard of chastity from Srimati Radharani. Since even Lord Krsna cannot estimate Radharani’s highly transcendental qualities, it is not possible for an ordinary man to estimate them.

From The Teachings of Lord Caitanya, by Srila Prabhupada