The Wicca Book of Days for March 4th
Rhiannon, a Celtic Goddess who was initially linked with the moon and livestock, was traditionally venerated on this day in pre-Christian Wales. Initially, Rhiannon was known as the wife of Pwyll, the king of Dyfed, and as the mother of Pryderi who was falsely accused of killing her infant son. Later tales credited her with powers of enchantment and equated her with Nimue and Viviane, both of whom may be identified with the Lady of the Lake in Arthurian legend. As a Lunar Goddess, Rhiannon was envisaged riding a white mare and surrounded by flocks of small birds honoring her as the bringer of the seasons
The Power of Four
The number four has many harmonious associations, being th number of balance and the earth, as well as of the four elements, seasons, and cardinal directions. A square, which has four equal sides, symbolize four, so perhaps wear a square ring, pendant or brooch today.