Why do you use four candles for the advent wreath?

The four candles on the Advent wreath represent the four weeks of Advent, a period of preparation leading up to Christmas. Each candle symbolizes hope, peace, joy, and love, with one candle lit each week. The circular shape of the wreath signifies eternity and God's unending love. Ultimately, the candles serve as a visual reminder of the anticipation and celebration of Christ's birth.