A cardinal is a high-ranking official in the Roman Catholic Church who is appointed by the pope. Cardinals serve as advisors to the pope and are responsible for electing a new pope during a conclave when the position becomes vacant. They often oversee specific regions or departments within the Church. Cardinals are typically bishops and wear distinctive red attire, symbolizing their willingness to sacrifice for their faith. They play a crucial role in the governance of the Church and help implement its teachings and policies worldwide. Their influence extends beyond religious matters, often engaging in social and political issues.