A chaplain is essentially a spiritual representative attached to a secular institution. Chaplains are expected to serve the spiritual and emotional needs of others. Some chaplains perform wedding or funeral ceremonies, administer communion, deliver spiritual messages, offer prayer at public meetings, and provide regular counseling. Other chaplains meet the need of the moment, usually through listening and prayer. Chaplains may also function as advocates; hospital chaplains, for example, may make requests of a nurse to help meet a particular patient’s needs; military chaplains may provide for marriage enrichment retreats.