Catholics are not the only religion that uses the Sign of the
Cross. Most Anglicans, Orthodox, Lutherans and some other
Protestant denominations use it. However, Catholics are the only
ones who routinely use it outside of Church services in personal
prayer. It is a form of prayer especially when the words 'In the
name of the Father, Son and Holy Spirit' are said while making the
I believe the four points of the cross they make are supposed to stand for "father, son, holy, ghost"
St. Cyril of Jerusalem (315-386 A.D.:Be not ashamed of the cross of Christ . . . but openly seal it upon your forehead, that the devils may behold the royal sign and flee trembling far away. Make this sign at eating and drinking, at sitting, at lying down, at rising up, at speaking, at working.