A Hand Censer (Katzion) is a liturgical implement used during the Orthodox service on certain occasions. This consists of a bowl attached to a handle with the lid attached to the bowl with a hinge. In Greek practice, particularly as observed on Mount Athos, during the portion of Vespers known as "Lord, I cry unto Thee" the ecclesiarch (sacristan) and his assistant will perform a full censing of the temple and people using hand censers. Some churches have the practice of not using the chain censer during Holy Week, even by a priest or bishop, substituting for it the hand censer as a sign of humility, repentance, and mourning over the Passion of Christ.