Why is the cross the best-known Christian symbol? What is the meaning of the Advent wreath? Why do we get ashes on our foreheads on Ash Wednesday? What is a rosary? Is the Bible a symbol? What do candles symbolize? These are just some of the 25 questions that people often ask about signs and symbols of the Catholic faith. Learn more about these signs and symbols — and our Catholic faith! — as you read the answers.