The tradition of decorating a tree with lights and ornaments during the holiday season has its roots in the pagan practice of bringing a tree inside during the winter solstice. In ancient times, people would bring evergreen trees inside and decorate them with various symbols of luck, protection, and fertility. The practice of decorating a tree with lights and ornaments to represent the rebirth of the sun and the new year was eventually adopted by Christians as a way to honor the birth of Jesus Christ. Today, the tradition of decorating a tree during the holiday season is one of the most beloved and iconic Christmas traditions worldwide.