Śrī Kṛṣṇa continued: “All the inhabitants of Vṛndāvana-dhāma—My mother, father, cowherd boyfriends and everything else—are like My life and soul. And among all the inhabitants of Vṛndāvana, the gopīs are My very life and soul. And among the gopīs, You, Śrīmatī Rādhārāṇī, are the chief. Therefore You are the very life of My life."
Śrīmatī Rādhārāṇī is the center of all Vṛndāvana's activities. In Vṛndāvana, Kṛṣṇa is the instrument of Śrīmatī Rādhārāṇī; therefore all the inhabitants of Vṛndāvana still chant "Jaya Rādhe!" From Kṛṣṇa's own statement given herein, it appears that Rādhārāṇī is the Queen of Vṛndāvana and that Kṛṣṇa is simply Her decoration. Kṛṣṇa is known as Madana-mohana, the enchanter of Cupid, but Śrīmatī Rādhārāṇī is the enchanter of Kṛṣṇa. Consequently Śrīmatī Rādhārāṇī is called Madana-mohana-mohinī, the enchanter of the enchanter of Cupid.

(Sri Caitanya Caritamrta------2:13:150------translation and purport).

Śrīla Rūpa Gosvāmī has stated that devotional service attracts even Kṛṣṇa. Kṛṣṇa attracts everyone, but devotional service attracts Kṛṣṇa. The symbol of devotional service in the highest degree is Rādhārāṇī. Kṛṣṇa is called Madana-mohana, which means that He is so attractive that He can defeat the attraction of thousands of Cupids. But Rādhārāṇī is still more attractive, for She can even attract Kṛṣṇa. Therefore devotees call Her Madana-mohana-mohinī—the attractor of the attractor of Cupid.

To perform devotional service means to follow in the footsteps of Rādhārāṇī, and devotees in Vṛndāvana put themselves under the care of Rādhārāṇī in order to achieve perfection in their devotional service. In other words, devotional service is not an activity of the material world; it is directly under the control of Rādhārāṇī. In Bhagavad-gītā it is confirmed that the mahātmās, or great souls, are under the protection of daivī prakṛti, the internal energy—Rādhārāṇī. So, being directly under the control of the internal potency of Kṛṣṇa, devotional service attracts even Kṛṣṇa Himself.

(Nectar of Devotion).