The 1st or 2nd of February is the sacred day of Brighid, the triple formed Celtic Goddess, Saint and Druidress.
Within Irish mythology, Brighid (whose name means, amongst others, "exalted one") was one of three daughters of the Dagda, the chief God of the Tuatha de Danann, all of whom were named Brighid. She was also the wife of Bres (a Fomorian) to whom she had a son named Ruadan.