Imbolc Lore
Imbolc, (pronounced "IM-bulk" or "EM-bowlk" , also called Oimealg, ("IM-mol'g), by the Druids, is the festival of the lactating sheep. It is derived from the Gaelic word "oimelc" which means "ewes milk". Herd animals have either given birth to the first offspring of the year or their wombs are swollen and the milk of life is flowing into their teats and udders. It is the time of Blessing of the seeds and consecration of agricultural tools. It marks the center point of the dark half of the year. It is the festival of the Maiden, for from this day to March 21st, it is her season to prepare for growth and renewal. Brighid's snake emerges from the womb of the Earth Mother to test the weather, (the origin of Ground Hog Day), and in many places the first Crocus flowers began to spring forth from the frozen earth.
The Maiden is honored, as the Bride, on this Sabbat. Straw Brideo'gas (corn dollies) are created from oat or wheat straw and placed in baskets with white flower bedding. Young girls then carry the Brideo'gas door to door, and gifts are bestowed upon the image from each household. Afterwards at the traditional feast, the older women make special acorn wands for the dollies to hold, and in the morning the ashes in the hearth are examined to see if the magic wands left marks as a good omen. Brighid's Crosses are fashioned from wheat stalks and exchanged as symbols of protection and prosperity in the coming year. Home hearth fires are put out and re-lit, and a besom is place by the front door to symbolize sweeping out the old and welcoming the new. Candles are lit and placed in each room of the house to honor the re-birth of the Sun.
http://www.wicca.com/celtic/akasha/imbolclore.htm