THE CELTIC CROSS
The Celtic cross is a religious icon that combines a Christian cross and many of them have a circle surrounding the intersection.
It goes back to the early days of Christianity in Ireland.
A popular legend in Ireland says that the Celtic cross was introduced by Saint Patrick or other Irish saint for the evagelization of the pagans of the island. It also says that St. Patrick joined circular sun or moon Christian symbol representation, thus linking the meaning of the cross pagan spirituality to better convey your message.