Why do we need to clean up for Chinese New Year, the origin of the Chinese New Year cleaning up

Chinese New Year's cleaning can sweep away the bad luck of the year, sweeping away the bad things in life, hoping that the next year can be all right. There is a common saying of blessing is "out with the old and in with the new", New Year's cleaning is this meaning. The old things in the house cannot be replaced by new ones, so they are cleaned up as a way to say goodbye to the old and welcome the new.

There is also a saying that, during the New Year, everyone has to go back and forth to relatives, as well as more neighbors, some of the year-round workers, the home is very dirty, so a cleaning, in order to meet the guests. The big cleanup is to make the home more clean, look more comfortable mood.