MITRE

The mitre is an piscopal symbol that usually represents a bishop.  

A bishop, from the Greek word episkopos (overseer), is a direct successor to the apostles. Bishops have, by divine institution, taken the place of the apostles as pastors of the church.    

In fact, the bishop himself is a symbol and is surrounded by symbols.  

The mitre is probably the most famous symbol of a bishop. It is the proper liturgical headdress for all bishops of the Latin rite, including the pope. The word comes from the Greek word mitra, meaning "turban." It consists of two stiffened flaps of material joined by a headband with two fringed strips hanging from the back base of the mitre. The mitre as we know it today developed from the conical head-covering worn by the pope that appeared in the tenth century. At first, it was only used by the pope.