Celibate daughter of Maya, a demoness. (Glossary for the Vahinis)

One day, Hanuman and his group of followers reached the shore of a broad lake. There they espied a woman deeply engaged in austerities. They prostrated before her from a distance. She opened her eyes and seeing their exhausted condition, she said, “Monkeys, you appear very tired and hungry. Refresh yourselves with these fruits,” and she supplied plenty of food. When they sat around her, she heard from them the mission on which they were moving about. She said that she was proceeding to the holy place where Rama was in residence. “Listen to my story,” she said. “My name is Swayamprabha. I am the daughter of a Celestial Gandharva. I have an  Apsaras friend called Hema. While engaged in austerities, Brahma appeared before me and asked me what I needed. He assured me that he would grant me my wish. Then I replied, ‘I wish to see God as man, moving on earth!’ He said: ‘Be here alone. In due course, a number of mighty monkeys will arrive here and halt at your request. From them, you can know of Rama, who is God come in human form. Later, you can look on Rama himself.’ Ah! That boon is being realised. The first sign and the second, of its fulfilment are already evident. The first is your arrival. The second is your account of Rama’s story and the place where He is in residence. Now, I am as happy as if I have already attained the third, namely, the Darshan of Rama.” The woman was immersed in unbounded ecstasy and delight and shedding tears of joy. The monkeys too were deeply moved and shed tears of delight. Meanwhile, the woman began introspecting with eyes closed. She broke the silence with the announcement, “Monkeys! On seashore, in a beautiful City, at the centre of a charming garden, alone, all by herself, Sita is bewailing her fate. You will see her without doubt. Be assured of this. Proceed in confidence and with courage.” (RKRV Part II, p. 113)