The monograph explores the spread of terminological vocabulary of Slavic spiritual culture in the space of South Slavia. The terms and the extralinguistic phenomena they denote from the sphere of the folk calendar, family rituals and folk mythology are considered. The book is built on the material of all South Slavic languages ​ ​ and traditions, which makes it possible to identify cultural and linguistic areas on the territory of the spatial continuum of South Slavia. The book includes 47 ethnolinguistic maps dedicated to the names of folk holidays and annually performed rituals, native, wedding and funeral rituals, names of mythological characters and beliefs about them, etc.