The Threefold Meaning of the KnotWhen one hears the word trinity he or she most likely thinks of its connection to religion. The three corners of the Celtic knot evoke the concept of the central mystery of the Christian faith the existence of the Father Son and Holy Spirit as distinct yet eternally entwined entities. However the Celtic knot has appeared for centuries in the insular artwork of Ireland as a decorative touch. Endless interpretations of the threefold design abound in the contemporary world. When a gentleman includes the knot in an engagement ring or other piece of jewelry for his beloved he usually intends for it to represent his desire to love honor and protect her.