‘Imbolc is one of the four principal festivals of the Irish calendar, celebrated among Gaelic peoples and some other Celtic cultures, either at the beginning of February or at the first local signs of Spring. Most commonly it is celebrated on February 2, which falls halfway between the Winter Solstice and the Spring Equinox in the northern hemisphere. Originally dedicated to the goddess Brigid, in the Christian period it was adopted as St Brigid’s Day. In Scotland the festival is also known as Là Fhèill Brìghde, in Ireland as Lá Fhéile Bríde, and in Wales as Gwyl Fair.
Imbolc is traditionally a time of weather prognostication, and the old tradition of watching to see if serpents or badgers came from their winter dens is perhaps a precursor to the North American Groundhog Day.’ via Wikipedia.