1. Advent

The first Advent, often referred to as the First Sunday of Advent, marks the beginning of the Advent season in many Christian traditions.
Advent is a period of preparation and anticipation for the celebration of the birth of Jesus Christ at Christmas. It usually starts on the fourth Sunday before Christmas Day.

During Advent, Christians engage in various spiritual practices and reflections, such as lighting Advent candles on an Advent wreath, which typically has four candles, one for each Sunday leading up to Christmas.
The first candle, often called the "Prophet's Candle" or the "Hope Candle," symbolizes the anticipation and hope associated with the coming of the Messiah.

Each subsequent Sunday leading up to Christmas, an additional candle is lit, representing different themes such as peace, joy, and love. The Advent season serves as a time for believers to reflect on the significance of Christ's coming and to prepare their hearts for the celebration of Christmas.