There are many beautiful forms of prayer, but few as popular as the rosary. Though a hallmark of Catholic Christianity, the practice of counting prayers with some kind of method is ancient and widespread. Rooted in the praying of the 150 Psalms of David, early Christians, unable sometimes to memorize the Psalms, substituted the "Angelic Salutation" and the Lord's prayer instead. Saint Dominic in the 13th century is credited with spreading the devotion far and wide. Whether moving small stones from one pocket to another, or passing knotted cords through one's fingers, or using a more formal device -- like a rosary, a rosary bracelet or a rosary ring, the important point is to pray often and with love.