Advent is a season observed in many Christian churches as a time of expectant waiting and preparation for both the celebration of the Nativity of Jesus at Christmas and the return of Jesus at the Second Coming.
The word “Advent” is derived from the Latin word adventus, meaning “coming,” which is a translation of the Greek word parousia.
There are three meanings of 'coming' that Christians describe in Advent. The first, and most thought of, happened about 2000 years ago when Jesus came into the world as a baby to live as a man and die for us. The second can happen now as Jesus wants to come into our lives now. And the third will happen in the future when Jesus comes back to the world as King and Judge, not a baby.