As the word "upside down" is in the same pronounciation of "coming" in chinese, people always put the chinese word "happiness"upside down on the door in the spring festival to claim that the happine...是古代的一個(gè)故事，就是一個(gè)人把它貼倒了。An ancient chinese put the word "happiness" up side down on the door mistakenly, which turns out to match the meaning of the "happiness is coming". because the word "upside down" is in the same pronounciation of "coming" in chinese. As the time pass by, upsiding down the word "happiness" become a chinese culture, the ancient mistake comes to be a correct way nowadays.