Advent (from lat. adventus - advent) - the pre-Christmas time, the period to which numerous rituals and customs are timed. Advent is the time of waiting for the Nativity of Christ, and all its Sundays are significant holidays.
The fourth Sunday of Advent is preceded by the first, second and third Sundays, which are filled with the corresponding customs.
On the fourth Sunday of Advent, the first three candles are lit and the last, the Angelic Candle, is added. It means the last coming of the Savior in glory with all the Angels to take all true believers with him to heaven.