This thesis explores Orphic mythologemes and tropes in Marina Tsvetaeva’s works in order to identify whether they create a personalized semantic system in her oeuvre. I review such themes as the “supernatural powers” of the archetypal poet, the descent to the underworld, the return from the dead, and the dismemberment and subsequent appearance of Orpheus’s head. I study in detail the trope of the severed head in Tsvetaeva’s poetics and her understanding of poetry as Land with its physical and metaphysical realms. I discuss a question: which persons might Tsvetaeva have associated with Orpheus? I examine the guises of the lyrical “I” and its associations with mythological or literary personae. I argue that Tsvetaeva demonstrated resistance and opposition towards the Orphic/Apollonian paradigms; above the authority of the "archetypal poet Orpheus" she introduced and established the authority of the Genius who leads "poets with a history."