“ he [Roman Jakobson] narrows it relegating metaphor to the domain of semiotic structure = poetry, and metonymy to the sphere of the text = prose. ” - Yuri Lotman [Universe of Mind] Roman Jakobson The quote refers to a key idea in the work of Russian-American linguist and literary theorist Roman Jakobson, particularly expressed in his influential 1956 essay "Two Aspects of Language and Two Types of Aphasic Disturbances" (part of Fundamentals of Language ). The quote is taken from Universe of Mind by Yuri Lotman where Lotman elaborates upon Jakobson’s idea. Jakobson proposes that all language operates along two fundamental axes or "poles": The metaphoric pole — based on similarity (or substitution or selection). One element replaces or stands for another because of resemblance, analogy, or semantic likeness. Examples include synonyms, comparisons, or figurative substitutions like "life is a journey." The metonymic pole — based on contiguity ...