Lantern Festival falls the fifteenth day of the first lunar month. This is the first full moon of the new year, representing unity and perfection. This festival also marks the (officially) end of the long holiday.
There are many legends (传说) related to the origins of Lantern Festival. According to one legend, once in ancient times, a celestial (天堂的)swan came into the human world where it (shoot)down by a hunter. The Jade Emperor, the (high)god in Heaven, was angry about this. He planned an attack on Earth on the (fifteen) day of the first lunar month, with orders to destroy all people and animals. But the other celestial (begin) to disagree with him and risked his life (warn) the people on Earth. As result, before and after the fifteenth day of the first month, every family hung red lanterns outside their doors and set off firecrackers and fireworks(烟花爆竹), giving the impression their homes were already burning. By successfully tricking the Jade Emperor in this way, human beings were saved from(destruct).