Burmese folk religion
These exorcists, or "ahletan hsaya", are said to possess powers that can fend away or challenge these evil demons. These exorcists were often seen as very holy, because they had to be to combat troublesome spirits. They attempt exorcisms by giving the nat offerings. As an interesting overlap with Buddhism, exorcisms can be performed by holding the Buddha up to the possessed person, in an effort to have the Nat flee. If the exorcist cannot banish this spirit alone, they often ask for the assistance of the nat-kadaw. Sorcerers, or "weikzas" also harnessed the power of these nats through many complex rituals, to gain their own supernatural powers.
Excommunication
In the Catholic Church, excommunication is normally resolved by a declaration of repentance, profession of the Creed (if the offense involved heresy) and an Act of Faith, or renewal of obedience (if that was a relevant part of the offending act, i.e., an act of schism) by the excommunicated person and the lifting of the censure (absolution) by a priest or bishop empowered to do this. "The absolution can be in the internal (private) forum only, or also in the external (public) forum, depending on whether scandal would be given if a person were privately absolved and yet publicly considered unrepentant." Since excommunication excludes from reception of the sacraments, absolution from excommunication is required before absolution can be given from the sin that led to the censure. In many cases, the whole process takes place on a single occasion in the privacy of the confessional. For some more serious wrongdoings, absolution from excommunication is reserved to a bishop, another ordinary, or even the Pope. These can delegate a priest to act on their behalf.