Carl Jung was a pioneer of psychoanalytic theory along with his former partner and mentor, Sigmund Freud. Although Jung parted ways with Freud and embarked on his own unbeaten trail of psychoanalysis two years before his death, they are both highly revered for the myriad ways in which they developed understanding of the mind. Concurrently with this period, Joseph Conrad wrote and published the short story Heart of Darkness, which addressed much of what Jung had discovered about the psyche and its inner workings. In Heart of Darkness, both Marlow and Kurtz are representations of highly recurring archetypes in human myth, religion, and folklore. They work together to embody one of the fundamental principles of Jung's personality: the principle of opposites. The principle of opposites states that both sides of opposite pairs – good and evil, light and darkness, joy and despair, et cetera – are present to complement the other. In this way, Marlow and Kurtz are opposite replicas of each other in Conrad's Heart of Darkness; they are doubles who complement each other, as in Jungian theory. Marlow is the storyteller of Heart of Darkness and is therefore one of the most crucial characters in the plot. It embodies the desire to be valiant, resilient and valiant, while appearing cautiously revolutionary. He seems to be the epitome of courage, going into the jungle. Marlow's journey is, in essence, a "nocturnal journey into the unconscious, the confrontation with an inner entity" (Guérard 38). The threatening coast is an allegory for the idea of ​​the unconscious. “Looking at a coastline that slides near the ship […] there it is before you, smiling, sullen, inviting, large, petty, insipid or wild, and always silent with an air of whispering” (1..... . middle of the article......Works CitedBurke, Colleen. "Colleen Burke - Joseph Conrad's Heart of Darkness - A Metaphor for Jungian Psychology. November 15, 2011. Conrad, Joseph and Paul B. Armstrong: Authoritative text, backgrounds and contexts, criticism New York: WW Norton &, 2006.Guerard, Albert J. Conrad the novelist Cambridge, MA: Harvard U. Press, 1958.Hughs, Richard E. The Lively Image: Four Myths in Literature. Cambridge, MA: Winthrop Publishers, 1975. Jung, CG Collected Works of CG Jung, Vol. 9, Part 1., 2nd ed., Princeton University Press, 1968. 451 p.). . Trials of the Self: Heroic Trials in the Epic Tradition Hamden, Conn.: Archon Books, 1983. Spivack, Charlotte “The Journey to Hell: Satan, the Shadow, and the Centennial.” Goodbye 9:4 (1965): 420 - 437.