This study examines the theological structure of Tengrism, understood here as a heuristic term for the broader Tengri-centered early Turkic belief system, its historical transformation, and its continuity in post-Islamic Turkic culture and folklore from an interdisciplinary perspective. Although the continuity of pre-Islamic Turkic beliefs in later Turkish folk culture has been noted in previous scholarship, the specific mechanisms through which Tengri-centered concepts survived as implicit theological structures within lived religion, folk belief, and Alevi-Bektashi ritual–poetic traditions have not been sufficiently systematized. The research argues that Tengrism should not be understood merely as an archaic remnant of belief but as a comprehensive theological paradigm shaping cosmology, political legitimacy, ethical order, and the perception of sacredness in early Turkic societies. In this context, epic and mythological texts such as the Orkhon Inscriptions, the Epic of Oghuz Khan, the Book of Dede Korkut, and the Epic of Manas constitute the primary textual sources of the study. The research is based on a qualitative design and employs phenomenological and hermeneutic approaches. The phenomenological perspective seeks to understand the theological principles of Tengrism and the perception of sacredness within their own cultural and symbolic universe, while hermeneutic analysis interprets the continuity of symbolic and mythological elements preserved in folkloric narratives. The findings indicate that the Tengri-centered and cosmologically structured character of early Turkic religiosity did not disappear after the adoption of Islam; rather, it persisted through folkloric narratives, popular beliefs, ritual practices, and the Alevi-Bektashi tradition. These findings demonstrate that Tengrism continues to function as a dynamic theological paradigm within Turkish cultural memory and popular religiosity.
Bayat et al. (Tue,) studied this question.