Evergreen, or pine trees, are one of the most immediately recognizable symbols of mainstream Christmases. An evergreen tree symbolizes both eternal life and spiritual growth. While this ties in well to the Christian message (the birth of Jesus Christ), the tradition of pine trees in homes has Pagan roots. As far back as the 4th century, pine trees were a sign of hope and light during the Winter Solstice. Today, the symbol is tied to advertising and is used by Christians and non-Christians alike. It’s also one of the most popular ways to depict Christmas through decor.