Brighid is the Celtic goddess who is the keeper of the hearth, the deity who watches over nursing mothers and pregnant women, and who is the overseer of all things domestic. She is also connected to healing and wisdom. One commonly found symbol of Brighid is her green mantle, or cloak. In Gaelic, the mantle is known as the brat Bhride.
Although her origins are that of a Pagan goddess, at one point she became associated with Christianity and St. Brighid of Kildare. The legend has it that Brighid was the daughter of a Pictish chieftain who went to Ireland to learn from St. Patrick. In one story, the girl who later became St. Brighid went to the King of Leinster, and petitioned him for land so she could build an abbey. The King, who still held to the old Pagan practices of Ireland, told her he'd be happy to give her as much land as she could cover with her cloak. Naturally, her cloak grew and grew until it covered as much property as Brighid needed, and she got her abbey. Thanks to her roles as both a Pagan goddess and a Christian saint, Brighid is often seen as being of both worlds; a bridge between the old ways and the new.
In Celtic Pagan stories, Brighid's mantle carries with it blessings and powers of healing. Many people believe that if you place a piece of cloth out upon your hearth at Imbolc, Brighid will bless it in the night. Use the same cloth as your mantle each year, and it will gain strength and power each time Brighid passes by. The mantle can be used to comfort and heal a sick person, and to provide protection for women in labor. A newborn baby can be wrapped in the mantle to help them sleep through the night without fussing.
To make a Brighid's mantle of your own, find a piece of green cloth long enough to comfortably wrap around your shoulders. Leave it on your doorstep on the night of Imbolc, and Brighid will bless it for you. In the morning, wrap yourself in her healing energy.