Śrīmatī Rādhārāṇī is decorated with sūddīpta-sāttvika emotions, which sometimes include jubilation and sometimes pacification. All the transcendental ecstasies are manifested in the body of Śrīmatī Rādhārāṇī. Sūddīpta-sāttvika emotions are manifest when a lover is overwhelmed with certain feelings which he or she cannot check. Rādhārāṇī has another emotion called kila-kiñcita, which is manifest in twenty different ways. These emotions are manifested partly due to one's body, partly due to one's mind, and partly due to habit. As far as the bodily emotions are concerned, they are manifested in posture and movement. As far as the emotions of the mind are concerned, they are manifested as beauty, luster, complexion, sweetness, talking, magnanimity and patience. As far as habitual emotions are concerned, they are manifested as pastimes, enjoyment, preparing for separation, and forgetfulness.
The tilaka of good fortune is on the forehead of Śrīmatī Rādhārāṇī, and She also has a locket of prema-vaicittya. Prema-vaicittya is manifest when a lover and beloved meet and fear separation.
Śrīmatī Rādhārāṇī is fifteen days younger than Kṛṣṇa. She always keeps Her hand on the shoulder of one of Her friends, and She always talks and thinks of pastimes with Kṛṣṇa. She always offers Kṛṣṇa a kind of intoxicant by Her sweet talks, and She is always prepared to fulfill all His desires. In other words, She supplies everything needed to meet all the demands of Śrī Kṛṣṇa, and She possesses unique and uncommon qualities for Kṛṣṇa's satisfaction.
In the Govinda-līlāmṛta a nice verse states: "Who is the breeding ground of affection for Kṛṣṇa? The answer is that it is only Śrīmatī Rādhikā. Who is Kṛṣṇa's dearmost lovable object? The answer is that it is only Śrīmatī Rādhikā and no one else. Sheen in the hair, moisture in the eyes, firmness in the breasts—all these qualities are present in Śrīmatī Rādhikā. Therefore only Śrīmatī Rādhikā is able to fulfill all the desires of Kṛṣṇa. No one else can do so."
Satyabhāmā is a competitor of Śrīmatī Rādhārāṇī’s, but she always desires to come to the standard of Śrīmatī Rādhārāṇī. Rādhārāṇī 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 Pārvatī, the wife of Lord Śiva, desire elevation to Her standard of beauty. Arundhatī, who is known as the most chaste lady in the universe, desires to learn the standard of chastity from Śrīmatī Rādhārāṇī. Since even Lord Kṛṣṇa cannot estimate Rādhārāṇī’s highly transcendental qualities, it is not possible for an ordinary man to estimate them.
After hearing Rāmānanda Rāya speak of the qualities of Śrīmatī Rādhārāṇī and Kṛṣṇa, Lord Caitanya desired to hear from him about the reciprocal exchange of love between Them. Rāmānanda Rāya described Kṛṣṇa as dhīra-lalita, a word indicating a person who is very cunning and youthful, who is always expert in joking, who is without anxiety, and who is always subservient to his girlfriend. Kṛṣṇa is always engaged in loving affairs with Rādhārāṇī, and He takes to the bushes of Vṛndāvana to enjoy His lusty activities with Her. Thus He successfully carries out His lusty instincts. In the Bhakti-rasāmṛta-sindhu it is stated: “By His impudent and daring talks about sex indulgence, Kṛṣṇa obliged Śrīmatī Rādhārāṇī to close Her eyes, and taking advantage of this, Kṛṣṇa painted many pictures on Her breasts. These pictures served as subject matter for Rādhārāṇī’s friends to joke about. Kṛṣṇa was always engaged in such lusty activities, and thus He made His youthful life successful.”
Upon hearing of these transcendental activities, Lord Caitanya said, "My dear Rāmānanda, what you have explained regarding the transcendental pastimes of Śrī Rādhā and Kṛṣṇa is perfectly correct, yet there is something more I would like to hear from you."
"It is very difficult for me to express anything beyond this," Rāmānanda Rāya replied. "I can only say that there is an emotional activity called prema-vilāsa-vivarta, which I may try to explain. But I do not know whether You will be happy to hear of it." In prema-vilāsa there are two kinds of emotional activities—meeting and separation. This transcendental separation is so acute that it is actually more ecstatic than meeting. Rāmānanda Rāya was expert in understanding these highly elevated dealings between Rādhā and Kṛṣṇa, and in this regard he had composed a nice song, which he narrated to the Lord. The purport of the song is that the lover and the beloved, before meeting, generate a kind of emotion by the exchange of their transcendental activities. That emotion is called rāga, or attraction. Śrīmatī Rādhārāṇīnoted that "this attraction and affection between Us has risen to the highest extent," but the cause of this attraction is Rādhārāṇī Herself. "Whatever the cause may be," Rādhārāṇī said, "that affection between You and Me has mixed Us in oneness. Now that it is the time of separation, I cannot see the history of the evolution of this love. There was no cause or mediator in Our love save Our meeting itself and the exchange of feelings through Our glances."
This exchange of feelings between Kṛṣṇa and Rādhārāṇī is very difficult to understand unless one is elevated to the platform of pure goodness. Such transcendental reciprocation is not possible to understand even from the platform of material goodness. One has to transcend even material goodness in order to understand. This is because the exchange of feelings between Rādhā and Kṛṣṇa is not a subject matter of this material world. Even the greatest mental speculators cannot understand this, directly or indirectly. Material activities are manifested for either the gross body or the subtle mind, but this exchange of feelings between Rādhā and Kṛṣṇa is beyond such manifestations and beyond intellectual mental speculation. It can be understood only with purified senses freed from all the designations of the material world.