Legend has it that in ancient China there was a monster called "Nian", head long sharp horn, ferocious abnormality, "Nian" Beast Nians deep in the sea floor, every New Nian's Eve, climb ashore to devour livestock to harm human life, so every New Nian's Eve, village villages Zhai people help, fled to the mountains to avoid the "Nian" injury. Another Nian on New Nian's Eve, the folks, as in previous Nians, are busy packing things ready to flee to the mountains, when the village of the East Tau came a white-haired old man, white-haired old man said to a woman as long as he stayed at her house one night, he will be able to "Nian" Beast drive away.
传说中国古代有一种叫“年”的怪兽，头长尖角，异常凶猛，年兽年深陷海底，每到除夕，上岸就要吞食牲畜，危害人类生命，所以每到除夕，村寨人就帮助，逃到山上躲避“年”的伤害。又一年除夕，乡亲们，像以前的年人一样，正忙着收拾东西准备逃往山里，这时东头村来了一个白发老人，白发老人对一个女人说，只要他在她家住一晚，就能把年兽赶走。
People do not believe, the old woman advised it or go up the mountain to avoid good, but the elderly insisted to stay, the crowd saw advised him not to live, then went up the mountain to avoid. When the "Nian" beast as in previous Nians ready to break into the village raging, suddenly came the sound of firecrackers, "Nian" Beast Shiver, no longer dare to put forward, the original "Nian" Beast most afraid of red, fire and explosion.
人们不相信，老太太劝他还是上山避好，但老人坚持留下来，群众看见劝他不要住，便上山避好。当“年”兽像在前几年一样准备冲进村子的时候，突然传来鞭炮声，年兽颤抖着，再也不敢出来，原来“年”兽最怕红色、火灾和爆炸。
At this time the door opened, saw a stretched robe in the courtyard of the old man laughed, "Nian" Beast shocked, panic and fled. The next day, when people returned to the village from the mountains, found the village safe and sound, it dawned on the original white-haired old man is to help everyone banish the "Nian" Beast Immortals, people also found the white-haired old man banished the "Nian" Beast three Magic weapon. From then on, every Nian on New Nian's Eve, the family affixed red couplets, set off firecrackers, household lights bright.
这时门开了，看见一位老人在院子里拉长长袍大笑，年兽吓了一跳，惊慌失措地逃走了。第二天，当人们从山上回到村里，发现村里安然无恙，才发现原来白发老人是帮大家放逐年兽的，人们还发现白发老人放逐年兽三大法宝。从此以后，每年除夕，家家户户贴红对联，放鞭炮，家家户户灯火通明。
上面大概介绍了一下年兽的来源
Beast Picture /> Off "and came up with a set of" New Year off "approach: Every day in the evening, every household ahead of dinner, turn off the net stove, then chicken circle bullpen all tied firmly, then the house The door shut, hiding in the house to eat, "dinner" - as this dinner has Luck uncertain meaning, so repairing a very rich, in addition to the whole family get together meal represents harmony reunion, we also need the before meals for the ancestors to pray for the ancestors of the gods bless them safely through the night. After dinner, no one dared to go to bed, sitting huddled together chatting courage.
Was getting dark down, "year" from the deep forests in the channeling out, deep into the crowd inhabited villages. I saw every household rich family closed, the door also piled sesame stick, but could not see the streets of a figure. Turn half the night "year" to no avail, and had some bite to eat sesame bars. A few more, the male cock crow dawn, these brutal but stupid monster only unhappy returns. Get through "the year" of people delight, thanks to ancestors bless the world, I would like to congratulate each other not to be "in" eat, but also open the door to set off firecrackers, to congratulate meet with neighbors and relatives.
This went on for several years, not anything about the situation, people beast guard. Just thirty at night a year, the beast suddenly went to a southern village. A village almost eaten by the beast, only one hang red curtains, wearing a red bridal couple without incident. There are several childish, point a bunch of bamboo in the yard playing, red fire, after burning bamboo "pops" Baoxiang, the beast go here and saw the fire scared to turn around and fled. Since then, people knew the beast afraid of red, sensitive to light, fear of noise, every beginning of the year to the end, every household will stick red paper, wearing a red robe, hanging red, drums, set off firecrackers, so the beast would not dare to come again . In the "Book of Songs Xiaoya Ting Liao" chapter, there is "Ting Liao light" records. The so-called "Ting Liao," is made with a bamboo pole like torches. After burning bamboo, bamboo in the air expands, bamboo chamber burst, emit crackling sound, which is the "firecracker" comes from.
But in some places, the villagers do not know the beast afraid of red, it is often eaten by the beast. It later spread to the sky Ziwei thing there, in order to save his people, determined to destroy the beast. One year when he came out to be the beast, use fireball it down, and then lock it in thick chains on the pillars. Since then, since then, "year" was that people surrender, became the town house for security and peace of beneficial animals. Every New Year, people always want to burn incense, thank purple star lower bound to bring peace.本回答被网友采纳