The article examines the complex problems of modern philosophical knowledge, fo-cusing on the typology of trinitarian thinking, using the genesis and evolution of the poetics of pre-romanticism in literary culture as an example. Priority attention is given to "median" trends in culture. The study was conducted based on the synthesis of historical-typological, comparative-typological, comparative and system-integrated methods. The triad of pre – ro-mantic concepts "historicism – melancholy-genius" is considered in the light of the problems of trinitarian thinking. The sentimentalist-pre-romantic nature of the central phenomenon of melancholy is considered based on the material of Russian poetry of the late XVIII – early XIX centuries, with the involvement of the context of European culture. The results of the study had been compiled by the authors over the years in five monographs, three disserta-tions, six publications in international databases and three international forums. The conduct-ed study has shown that it is the phenomenon of pre-Romanticism that is the center of the process of forming new trends in the literary culture of a trinitarian philosophical understand-ing of the world, through the key concept of Melancholy. Among the nearest prospects of scientific developments is the analysis of the processes of the genesis of trinitarianism in the " Graveyard" branch of pre-romanticism, as well as the study of the dialectic of the pre-romantic concept of genius in this vein.