A cardinal is a high-ranking official in the Roman Catholic Church who serves as a senior member of the clergy. Cardinals are appointed by the Pope and often oversee important dioceses or serve in the Vatican. They play a crucial role in church governance and are responsible for electing a new pope when the position becomes vacant. In addition to their administrative duties, cardinals often participate in significant religious ceremonies and provide guidance to the faithful. They wear distinctive red robes, symbolizing their commitment to the church and their willingness to sacrifice for their faith.