During Advent, Christians prepare for Jesus' birth and second coming in various ways. The season emphasizes waiting, repentance, and prayer. Traditions like lighting Advent wreath candles, saying the "O Antiphons," and enacting nativity scenes help mark the progression to Christmas. People worldwide celebrate differently, but all aim to welcome Christ through acts of faith, charity, and worship during this liturgical period. Key biblical figures highlighted are John the Baptist, Isaiah, and Mary as exemplars of readiness for the Messiah.