【正文】
cestors considered it an auspicious day worth celebration. That’s why ancient Chinese began to celebrate this festival long time ago. The custom of ascending a height to avoid epidemics was passed down from long time ago. Therefore, the Double Ninth Festival is also called Height Ascending Festival. The height people will reach is usually a mountain or a tower. Ancient literary figures have left many poems depicting the activity. Even today, people still swarm to famous or little known mountains on this day.