Fasta was the first folk-mother, or head of the order of priestesses, of the Frisians according to the Oera Linda Book, which is generally considered to be a hoax. Appointed directly by the goddess Frya, Fasta ruled from 2194 BC and was still reigning forty-nine years later (2145 BC).
Probably inspired by knowledge of the Roman goddess Vesta, Fasta was said to head an order of priestesses that, just like the Vestal Virgins, took a vow of absolute celibacy, and who guarded a sacred, eternally burning flame. The Oera Linda Book describes the daily routine of the priestesses, which included spending six hours a day, in two shifts of three hours each, bending their knees in devotion before the flame. Each temple, of which there were many, had its own sacred flame and twenty-eight priestesses, so that seven would always be in attendance at any one time. The order of priestesses governed Frisian society for many centuries until it eventually lost power to a militaristic monarchy.
Ottema, J. G., & Sandbach, W. R. (1876). The Oera Linda Book, from a manuscript of the thirteenth century. London: Trübner & Co.