In northern Europe, many traditions that we now consider part of Christian worship of Christs birth were begun long before the participants had ever heard of Christ. The pagans of northern Europe celebrated the their own winter solstice, known as Yule. Yule was symbolic of the pagan Sun God, being born, and was observed on the shortest day of the year. As the Sun God grew and matured, the days became longer and warmer. It was customary to light candles to encourage the sun to grow and to reappear next year.
Huge Yule logs were burned in honor of the sun. The word Yule itself means “wheel,” the wheel being a pagan symbol for the sun. Mistletoe was considered a sacred plant, and the custom of kissing under the mistletoe began as a fertility ritual. Hollyberries were thought to be a food of the gods.
The tree is the one symbol that unites almost all the northern European winter solstice celebrations. Live evergreen trees were often brought into homes during the harsh winters as a reminder to inhabitants that soon their crops would grow again. Evergreen boughs were sometimes carried as totems of good luck and were often present at weddings, representing fertility. The Druids used the tree as a religious symbol, holding their sacred ceremonies while surrounding and worshipping huge trees. The various traditions of lighting candles and having trees inside were eventually combined and this is why we have colorful lit trees in our homes today. It has nothing at all to do with Christ.
As a foot note on the history of Christmas, In 350, Pope Julius I declared that Christ’s birth would be celebrated on December 25. There is little doubt that he was trying to make it as painless as possible for pagan Romans (who remained a majority at that time) to convert to Christianity. The new religion went down a bit easier for those early Christian converts, knowing that their feasts would not be taken away from them.
By the way Christian; that is a Pentacle on top of your Christmas tree...