Chongyang, also known as the Double Ninth Festival, is a traditional Chinese holiday celebrated on the ninth day of the ninth month in the lunar calendar. This festival typically falls in October and is a time for families to honor their ancestors and enjoy the beauty of autumn. It is associated with various customs, including climbing mountains, drinking chrysanthemum tea, and eating double ninth cake. The festival has deep cultural significance, symbolizing longevity and health. The number nine is considered auspicious in Chinese culture, and the celebration often includes activities that promote well-being, such as appreciating nature and participating in family gatherings.