The purpose of a Christmas tree is to celebrate the season of Christmas and bring joy and festivity to people's homes. It is also a symbol of the holiday spirit and serves as a focal point for decorating and gathering with family and friends. Many people also believe that a Christmas tree has a magical power to grant wishes, especially on Christmas Eve. The tree is typically decorated with colorful lights, ornaments, and a star or angel at the top, representing the star of Bethlehem and the angel who announced the birth of Jesus Christ.