Folklore is a folk custom created by the people, passed down by the people and passed down by the people. Including all kinds of material production, clothing, diet, residence, migration, age, wedding and funeral etiquette, as well as handicrafts, agriculture, trade, industry, entertainment and other customs. It relies on the influence of habits, influences and psychological beliefs, and is the expression of material culture and spiritual culture. Folk custom, a social and cultural phenomenon, can be divided into: psychological customs, with faith as the core, mainly worship and taboo, with strangeness and mystery; Behavioral folklore is also a reflection of psychology, but it is more manifested in tangible communication activities, such as ceremonies, sacrifices, weddings, prayers, worship, festivals, memorials, entertainment and so on. Sex art includes oral literature such as primitive myths, epics, narrative poems, legends, ballads and proverbs, as well as language forms such as incantations, formulas and rhymes.