The article is devoted to the study of specific features of subdialectal discourse and its mental continuum, viewed through the prism of modern linguistic theories. The purpose of the research is to study and describe the functioning and structure features, as well as the specifics of the linguarium of subdialectal discourse. The object of the study is the subdialectal discourse, which covers speech practices recorded in the village of Pishchanyi Brid, Novoukrainskyi district, Kirovohrad region. The subject of the study is the mental continuum of the subdialect speakers, which includes knowledge, perceptions and assessments related to various aspects of their lives. The source of the study was the speech recordings of the native speakers, i.e. the textual corpus of the subdialect. The methods used in the study were modelling, hypothetical method, deductive and inductive methods, descriptive method, observation method, taxonomic method, and continuous sampling method. The peculiarity of the study of subdialectal speech in discourse studies lies in the analysis of the composition of usages, the specifics of the composition of the linguarium and its influence on the structure of discourse, expression of thoughts, interaction of speakers and the formation of the ethnographic identity of peasants who speak the subdialect. The discourse approach allows us to better understand the speech process in a specific socio-cultural and geographical setting, as well as the interaction of speakers within the dialect environment. It involves analysing the discourse of the language group in question, identifying specific lexical, grammatical and phonetic features that are characteristic of certain socio-cultural groups. The metalinguistic interpretation of discourse types in the linguistic paradigm presents dialectal discourse as a reflection of real language use, a set of idiolects and an indicator of changes in the language. The household, ceremonial, religious and existential knowledge contained in the dialect discourse is critical to the well-being and cultural integrity of rural communities. In particular, household knowledge encompasses practical skills in housekeeping, agriculture and crafts. Ceremonial and religious knowledge includes traditions, rituals and beliefs that support the spiritual life and cultural identity of the community, and existential knowledge is related to the understanding of life, death and moral values, helping community members navigate difficult life situations. Prospects for the study include a meta-analysis of dialectal discourse, which can be expressed in different ways in individual subdialects, the development of new methods for studying dialectal language in the digital environment, and the integration of interdisciplinary approaches for a deeper understanding of speech practices and cultural characteristics of speakers.