The addressing of supposed invisible spirits with a command to depart, binding them to obey by the invocation of a sanctified name, is the act of exorcism as known to the Western world. Exorcism is still provided for in rites of Judaism, Roman Catholicism, Anglicanism and the Orthodox Churches, and is known in a variety of forms in the major and minor religions and sects. In cases of supposed demonic possession a priest or lay exorcist may be summoned. Exorcism is a ceremony preparatory to baptism in the Catholic ritual, hence hundreds of millions of people have been involuntarily exorcised shortly after birth, and are later largely unaware that such an event occurred in their lives.