Imbolc is a festival belonging to Brigid, the Celtic goddess who, in later times, became famous as a Christian saint. At first, her festival on February 1 was known as "Imbolc" or "Oimelc", two Gaelic names which refer to the lactation of the ewes. Lactation is the flow of milk that happens when the baby lambs are born in the spring, and Gaelic languages are those spoken in countries like Ireland and Scotland.