Why Iran took Ali Khamenei’s coffin to the site of his death

Iran is conducting a multi-day state funeral for Ayatollah Ali Khamenei, symbolically transporting his coffin to the site of his death to emphasise his "martyrdom." Processions span Tehran, Qom, and Iraq before a final burial in Mashhad. Meanwhile, new leader Mojtaba Khamenei is reportedly avoiding public ceremonies due to security concerns following his father’s killing.