What do the candles represent in the advent?

The first candle is called the Prophet's candle and is meant to signify the hope of Jesus' coming. The second is called the Bethlehem candle in honor of the city of Christ's birth. The third candle is the shepherds' candle, for those who came to see the baby Jeusus. The final candle is the angels' candle, symbolising the angelic proclamation of joy at Christ's birth.