Dicasteries are departments within the Roman Catholic Church that assist the Pope in governing the Church. Each dicastery focuses on specific areas of church life, such as education, health care, or social justice. They help implement church policies and provide guidance to local dioceses. The structure of dicasteries is part of the Vatican City administration, and they are led by a prefect, who is often a cardinal. Dicasteries play a crucial role in the Church's mission by addressing various issues and ensuring that the teachings of Catholicism are upheld worldwide.