Christmas tree design description

why is the Christmas tree sparkling decorated? This actually adapts the story of Martin Luther who is impressed to see the beauty of the stars in the sky sparkling through the branches of trees, as he walks in the evergreen forest. He then cut down a pine tree and took it home. And to make the effect sparkly, he put candles on each of his branches. So from there the tradition was born which became the beginning of the Christmas industry.