The problem of the motivation of the linguistic sign is more and more in sight of European linguistics, in the direction of even creating a new discipline, motivational linguistics. In the Motivational Phraseological Dictionary, Chisinau, 2023, whose author is the undersigned, it is proposed to conceive the genesis of stable polylexical units by indicating the type of motivation - the extralinguistic one, as well as by the aspect of their origin, they being indigenous and general. Stable expressions of foreign origin are considered general to a large number of languages. The other stable polylexical units are to be regarded as indigenous, having their origin in Romanian, even if they have correspondences in other languages. Their similarity in the third languages can be explained by several reasons. At their emergence, stable polylexical units were originally denominative, motivated language units, where they denoted definite facts in the surrounding world, or connotative, motivated units, where the speaker expressed an attitude towards a certain fact in life. Along the way, as language and society have evolved, some motivated phraseological units have also remained motivated, their components or one of them retaining their meaning. The explanation lies in the fact that only these language units can name certain realities: certain lexical and grammatical values, elimination of ambiguity, etc. The present article will focus on some components of the given phraseologisms expressing some Romanian indigenous symbols and motifs, as they are part of the linguoculture of the Romanian people.