Arianrhod ‘s name has been translated as silver-wheel, a symbol that represents the ever-turning wheel of the year, she was the Celtic Goddess of fertility, rebirth and the weaving of cosmic time and fate. Arianrhod is linked with the moon and North star.
The silver wheel perhaps' refers to the oar wheel upon which she carried the dead back to her heavenly northern land an island off the west coast of Wales. A realm know as Caer Sidi which means "revolving castle.", where according to tradition, the dead souls waited for the Goddess and her female attendants to decide their fate before being reincarnated.
At the centre of her castle was a turning glass tower, which contained the mystical Seat of Poetic Inspiration.