Among them are various groups of consorts in Vraja who have varieties of sentiments and mellows. They help Lord Kṛṣṇa taste all the sweetness of the rāsa dance and other pastimes.
As already explained, Kṛṣṇa and Rādhā are one in two. They are identical. Kṛṣṇa expands Himself in multi-incarnations and plenary portions like the puruṣas. Similarly, Śrīmatī Rādhārāṇī expands Herself in multiforms as the goddesses of fortune, the queens and the damsels of Vraja. Such expansions from Śrīmatī Rādhārāṇī are all Her plenary portions. All these womanly forms of Kṛṣṇa are expansions corresponding to His plenary expansions of Viṣṇu forms. These expansions have been compared to reflected forms of the original form. There is no difference between the original form and the reflected forms. The female reflections of Kṛṣṇa’s pleasure potency are as good as Kṛṣṇa Himself.

The plenary expansions of Kṛṣṇa’s personality are called vaibhava-vilāsa and vaibhava-prakāśa, and Rādhā’s expansions are similarly described. The goddesses of fortune are Her vaibhava-vilāsa forms, and the queens are Her vaibhava-prakāśa forms. The personal associates of Rādhārāṇī, the damsels of Vraja, are direct expansions of Her body. As expansions of Her personal form and transcendental disposition, they are agents of different reciprocations of love in the pastimes of Lord Kṛṣṇa, under the supreme direction of Śrīmatī Rādhārāṇī. In the transcendental realm, enjoyment is fully relished in variety. The exuberance of transcendental mellows is increased by the association of a large number of personalities similar to Rādhārāṇī, who are also known as gopīs or sakhīs. The variety of innumerable mistresses is a source of relish for Śrī Kṛṣṇa, and therefore theseexpansions from Śrīmatī Rādhārāṇī are necessary for enhancing the pleasure potency of Śrī Kṛṣṇa. Their transcendental exchanges of love are the superexcellent affairs of the pastimes in Vṛndāvana. By these expansions of Śrīmatī Rādhārāṇī’s personal body, She helps Lord Kṛṣṇa taste the rāsa dance and other, similar activities. Śrīmatī Rādhārāṇī, being the central petal of the rāsa-līlā flower, is also known by the names found in the following verses.
(Sri Caitanya Caritamrta------1:4:81------translation and purport).

Svarūpa Dāmodara has been identified as Lalitā-devī, the second expansion of Rādhārāṇī. However, text 160 of Kavi-karṇapūra’s authoritative Gaura-gaṇoddeśa-dīpikā describes Svarūpa Dāmodara as the same Viśākhā-devī who serves the Lord in Goloka Vṛndāvana. Therefore it is to be understood that Śrī Svarūpa Dāmodara is a direct expansion of Rādhārāṇī who helps the Lord experience the attitude of Rādhārāṇī.
(Sri Caitanya Caritamrta------1:4:105-------purport).

About eight or ten miles from Calcutta, on the banks of the Ganges, is a village known as Eṅḍiyādaha-grāma. Śrīla Gadādhara dāsa was known as an inhabitant of this village (eṅḍiyādaha-vāsī gadādhara dāsa). The Bhakti-ratnākara (Seventh Wave), informs us that after the disappearance of Lord Caitanya Mahāprabhu, Gadādhara dāsa went from Navadvīpa to Katwa. Thereafter he came to Eṅḍiyādaha and resided there. He is stated to be the luster of the body of Śrīmatī Rādhārāṇī, just as Śrīla Gadādhara Paṇḍita Gosvāmī is an incarnation of Śrīmatī Rādhārāṇī Herself. Caitanya Mahāprabhu is sometimes explained to be rādhā-bhāva-dyuti-suvalita, or characterized by the emotions and bodily luster of Śrīmatī Rādhārāṇī. Gadādhara dāsa is this dyuti, or luster. In the Gaura-gaṇoddeśa-dīpikā (154) he is described to be an expansion of the potency of Śrīmatī Rādhārāṇī. He counts among the associates of both Śrīla Gaurahari and Nityānanda Prabhu; as a devotee of Śrī Caitanya Mahāprabhu he was one of the associates of Lord Kṛṣṇa in conjugal love, and as a devotee of Lord Nityānanda he is considered to have been one of the friends of Kṛṣṇa in pure devotional service. Even though he was an associate of Lord Nityānanda Prabhu, he was not among the cowherd boys but was situated in the transcendental mellow of conjugal love. He established a temple of Śrī Gaurasundara in Katwa.
(Sri Caitanya Caritamrta------1:10:53-------purport).

As Kṛṣṇa is the highest emblem of spiritual perfection, so Rādhārāṇī is the highest emblem of that spiritual pleasure potency by which Kṛṣṇa is satisfied. Since Kṛṣṇa is unlimited, in order to satisfy Him Rādhārāṇī is also unlimited. Kṛṣṇa is satisfied just by seeing Rādhārāṇī, but Rādhārāṇī expands Herself in such a way that Kṛṣṇa desires to enjoy Her more. Because Kṛṣṇa was unable to estimate the pleasure potency of Rādhārāṇī, He decided to accept the role of Rādhārāṇī, and that combination is Śrī Caitanya Mahāprabhu. Rāmānanda Rāya then began to explain Rādhārāṇī as the supreme emblem of Kṛṣṇa's pleasure potency. Rādhārāṇī expands Herself in different forms, known as Lalitā, Viśākhā and Her other confidential associates. In his book Ujjvala-nīlamaṇi, Rūpa Gosvāmī explains the characteristics of Śrīmatī Rādhārāṇī. He points out that the body of Rādhārāṇī is in itself an actual evolution of transcendental pleasure. That body is decorated with flowers and fragrant aromas and is complete with transcendental love for Kṛṣṇa. That is the personification of His pleasure potency. That transcendental body takes bath three times: first in the water of mercy, second in the water of youthful beauty, and third in the water of youthful luster. After taking bath three times in that way, Her body is covered with shining garments and decorated with Kṛṣṇa's personal beauty, which is compared to cosmetics. Thus Her beauty constitutes the highest artistry. Her body is also decorated with the ornaments of spiritual ecstasy—trembling tears, petrification, perspiration, choking, cessation of all bodily functions due to transcendental pleasure, stumbling, high blood pressure and madness.
(TEACHINGS OF LORD CAITANYA).

The personal associates of Rādhārāṇī are called sakhīs, and Her near assistants are called mañjarīs. It is very difficult to express their dealings with Kṛṣṇa because they have no desire to mix with Kṛṣṇa or to enjoy Him personally. Rather, they are always ready to help Rādhārāṇī associate with Kṛṣṇa. Their affection for Kṛṣṇa and Rādhārāṇī is so pure that they are simply satisfied when Rādhā and Kṛṣṇa are together. Indeed, their transcendental pleasure is in seeing Rādhā and Kṛṣṇa united. The actual form of Rādhārāṇī is just like a creeper embracing the tree of Kṛṣṇa, and the damsels of Vraja, the associates of Rādhārāṇī, are just like the leaves and flowers of that creeper. When a creeper embraces a tree, the leaves and flowers as well as the creeper automatically embrace it. Govinda-līlāmṛta (10.16) confirms that Rādhārāṇī is the expansion of the pleasure potency of Kṛṣṇa and is compared with a creeper, and Her associates, the damsels of Vraja, are compared to the flowers and leaves of that creeper. When Rādhārāṇī and Kṛṣṇa enjoy Themselves, the damsels of Vraja relish the pleasure more than Rādhārāṇī Herself.
(TEACHINGS OF LORD CAITANYA).

When Lord Kṛṣṇa finally reappeared among the assembled gopīs, He looked very beautiful, just befitting a person with all kinds of opulences. In the Brahma-saṁhitā it is stated, ānanda-cin-maya-rasa-pratibhāvitābhiḥ: Kṛṣṇa alone is not particularly beautiful, but when His energy—especially His pleasure energy, represented by Rādhārāṇī—expands, He looks very magnificent.
(KRSNA BOOK).

According to expert opinion, Lakṣmī, the goddess of fortune, is a subordinate expansion of Śrīmatī Rādhārāṇī. As Kṛṣṇa has numerous expansions of viṣṇu-mūrtis, so His pleasure potency, Rādhārāṇī, also has innumerable expansions of goddesses of fortune. Therefore the goddess of fortune, Lakṣmījī, is always eager to be elevated to the position of the gopīs.
(KRSNA BOOK).

Rukmiṇī was the daughter of King Bhīṣmaka, ruler of the province known as Vidarbha. Just as Kṛṣṇa is the Supreme Personality of Godhead, Vāsudeva, Rukmiṇī is the supreme goddess of fortune, Mahā-Lakṣmī. According to the authority of the Caitanya-caritāmṛta, the expansion of Kṛṣṇa and that of Śrīmatī Rādhārāṇī are simultaneous: Kṛṣṇa expands Himself into various viṣṇu-tattva forms, and Śrīmatī Rādhārāṇī expands Herself into various śakti-tattva forms, by Her internal potency, as multiforms of the goddess of fortune.
(KRSNA BOOK).