視覺化是網路傳播趨勢，而始終即視覺化嘗試的隱喻，不論形 諸語言或圖像影像，皆為誘發認同的語藝行動。本文視隱喻為詩性之 知的代表，為銜接傳統語藝與視覺語藝的關鍵。作者先循當代與古 典兩路梳理既有隱喻理論，借Lakoff & Johnson、Ricoeur、Vico 與 Aristotle，突顯隱喻的常民性、經驗性與社群性對網路多媒體傳播研究 的深意；接著探討視覺化對語藝學的意義，並以Arnheim 的視覺創意 研究，連結語言與視覺隱喻，盼能在日益視覺化的網路環境中促進媒 介素養的反思。

This essay addresses the recent visual turn in communication research by exploring metaphors simply and directly as a visualization technique used by rhetors to engage audiences and induce cooperation. Treated as representative of poetic wisdom in contrast to scientific knowledge, metaphors serve well to bridge the gap between verbal rhetoric and visual rhetorics. Drawing on Lakoff & Johnson, Ricoeur, Vico and Aristotle, the author emphasizes the experiential and sociocultural characteristics of metaphors, which are highly relevant to our bodily existence and daily life. Then the significance of visualization in rhetorics and the role of both visual and verbal metaphors in the process are discussed. To enhance understanding of rhetorics as perception-based, the author refers to Gestalt psychologist Rudolf Arnheim for his rich study on visual thinking and expression creativity, thereby demonstrating that metaphors are not only at the core of communication competence but also are essential to multimedia literacies in the present network era.