The thurible, a sacred object used in Catholic worship, is a metal vessel with chains and a perforated cover. Its purpose is to burn incense, a fragrant substance used in liturgy to create a pleasing aroma. During Mass, the priest swings the thurible, releasing the incense's smoke. This act has a symbolic meaning, representing prayers ascending to God. The thurible itself is not a focus of worship, but a tool used to enhance the sacred atmosphere of Catholic worship.