Why are legends also called "belief stories"?

Sometimes, legends are also called "belief stories" because they provide strong evidence for the rationality and credibility of superstitions or traditional beliefs to some extent. Compared with fairy tales, legends have a strong local color, that is to say, legends are a kind of folk custom that can be easily localized. Myth stories emphasize the occurrence and development of events, ignoring the location of events, making the location of events "strange" and "distant" from real life to the greatest extent, thus highlighting the unreality of events. Legend attaches great importance to the "authenticity" of the place where the incident occurred, and tries to make the place where the incident occurred consistent with people's living environment. Moreover, the more consistent the environment, the higher the credibility of the legend, the more attractive it is, and it will make people sing, thus promoting the spread of the legend. Therefore, legends have strong historical, social and realistic characteristics.