To the Chinese, a full moon is a symbol of prosperity, happiness, and family reunion.
But the term only related to the time and season; the festival didn't exist at that point.
To the Chinese, Mid-Autumn Festival means family reunion and peace.
There is a legend that Emperor Xuanzong of the Tang Dynasty visited the Moon Palace in his dream and heard a wonderful song.
The main traditions and celebrations include eating mooncakes, having dinner with family, gazing at and worshipping the moon, and lighting lanterns.