Popular culture (folklore), which is born from the hearts of the people, has been passed on to the next generations orally and from breast to breast for years. The southern regions of Iran also have their own beliefs, like every country and ethnic group. In these areas, the belief in imaginary and imaginary beings has a significant appearance. These imaginary creatures with names such as "Fairy", "Yal", "Zar", "Buslame", "Gholak", "Karzengro" and... are the result of the thoughts and revelations of the people of this country about nature and the relationship of love and hatred with That, as well as dealings with African natives during commercial and maritime trades, etc. In this article, traces of southern people's beliefs about these imaginary creatures in the native literature of this region have been investigated. Studies show that Zar, ghoul and jinn creatures have reflected more than other invisible creatures in the literature of this region. Also, we find that early humans, who do not have the strength to fight against the power and secrets of nature, create these unknown and mysterious dangers under different and innovative titles and forms in dreams, poems and stories. And it displays its dominance over them in different ways.