Currently, the world has grown deep concern of the issue of symbols. The symbol has become popular research direction and has made certain achievements in the interactive language issues - literature - culture, especially in folklore studies. In the course of research on sub-type miraculous fairy tales Vietnam, the author found that the world miraculous characters (WMC) in the dream appeared with frequency bearing dense and symbolic meaning. That is to say, the WMC is a symbol interesting. This dream of fairy tales characters is a mystical symbol, universal, all humanity. So, the "WMC in the dream" is a kind of "dream cage dream”, "symbol cage in the symbol" should be "decoded" in order to understand the intellection of art about people and the world that the folk authors expressed... therein. The author would like to say about its deep influence on the development of WMC in the fanciful literature. In this paper, the researcher will survey of the world series with vanity; classification survey data; mentioned is the symbolism of the world vanity; grasp the concept of the ancient art of the world, humans.