Numerous insights have been obtained from the individually performed in-depth examination of Schubert’s selected works that allow gaining an overview of the development of the composer’s creative process over several years. The musical analysis carried out with the inclusion of C.G. Jung’s theory of the archetypes produced results that confirm the initial thesis of this project, namely the correlation between compositional creativity and the individuation process, and the fact that archetypes have a significant influence on the musical language of the composer.