"Mal"(language) in the novels of Seo Jung-in functions as a means of perception for the world not merely of writing. Mal, as a principle of thought, comprehends the ins and outs of the novel, including the theme, narrative character, descriptive principle etc,. Starting with measuring the gap among Mal, writing, and life, Seo`s works have sought for the answers of ``Why write?`` and ``How to write?`` This tendency stands out as a change of form in written in 1980s and then the expansion in . Noticeably, the dialogues in and are far from daily words and filled with extended length of knowledge ranging from the eastern to the western civilization and the past and the present, appearing quintessentially unfamiliar. Figurative language uses, symbols and references in the novels of Seo demand that the readers be equipped with fresh approaches. In this way, Seo`s works reach to the tragic contemplation of Mal, which he has pursued throughout his writing career. The conversations in novels frequently deal with Mal, while they trespass the boundaries of time and place, steering through mythology, history, philosophy and ideas. Especially in the philosophical pondering on the issue of language, Seo tries extended fields not only of Confucianism, Buddhism, Taoism, but also of Plato, Heracleitos, Greek Mythology, Ezra Pound in terms of views on language, economy and history. All this aims to enlarge the territory of Mal by reading it with fresh view on the legacy of eastern and western ideas. Focusing on pairing principles like chaos versus order and natural form and transformation, Seo pursues the change and expansion of the notion of Mal. The progress from chaos to transformation shows the essential strategy of Seo`s writings which maneuvers Jung Myung of Confucianism, Nature in progress of Taoism and perspectives on language and economy of Ezra Pound. This internal modification emerges on the surface of Seo`s writing after , abandoning the traditional form of novel.