The article deals with the connection of family folklore with Ethnography. It is well known that ritual folklore is closely related to Ethnography. First of all, it is the common features in their origin and functions that stand out. These are, of course, visible connections. And if we go deeper, we will see a multi-faceted, very complex root system. After all, the structure of ritual works, methods of depicting reality, content, plot lines, sets of motives, so to speak, the entire system of poetic structure is inextricably linked to the study of rituals, but these relationships have their own laws of relativity. The purpose of this article is to explore these paths. Such Parallels, which in the world of folklore are called "common places", are constantly repeated in different genres in the form of formulas. This is a very important element in the study of folk poetics. This opens up wide opportunities for studying traces of the ancient worldview and mythological consciousness, especially with the help of ethnographic and folklore materials.