The purpose of a Tenebrae service is to commemorate the Passion of Christ and his death. The word "Tenebrae" means "darkness" in Latin, and the service utilizes extinguishing candles to symbolize the darkness of Christ's suffering and death. It's a somber and powerful service, often involving readings from the Bible, music, and silence, culminating in a final loud noise (strepitus) that marks the closing of Christ's tomb