The Apostolic Throne is a special chair that is used by the Pope, who is the leader of the Catholic Church. It is also called the Holy See or the Seat of St. Peter. The idea behind it is that the Pope is the successor of St. Peter, who was one of the main apostles of Jesus Christ. That's why the chair is called the Apostolic Throne - it represents the authority that St. Peter passed down to the Pope.
The Apostolic Throne is not just any old chair - it is ornately decorated with symbols and designs that represent the Catholic Church and its history. It is usually made of wood and covered with rich fabrics like silk or velvet. Sometimes it is also decorated with precious metals like gold or silver.
When the Pope is sitting in the Apostolic Throne, it is a sign that he is in charge of the Catholic Church and that his authority comes from God. It is a symbol of the power and importance of the Pope's role as the leader of the Catholic Church.
So, in short, the Apostolic Throne is a special chair used by the Pope to show that he is the leader of the Catholic Church and that his authority comes from God.