宇宙人生之事事物物，都脫不開「陰陽二元」互動系統之牢籠，自然其中就存在著「潛性」（陰）與「顯性」（陽）之「二元互動」這一環。大體而言，同一種或同一類事物，如著眼於其「陽」面，將比較趨於表層而顯著，這就形成「顯性」；如著眼於「陰」面，則會比較趨於內層而潛伏，這就形成「潛性」。即以「辭章」而言，亦不例外。為此，特地鎖定辭章之「篇旨」為範圍加以辨析，以此證出「潛性」與「顯性」間「陰陽二元」之互動關係。

All things on earth are interacted in a system of "Yin-Yang" dualism, which also implies a dualistic interaction between the latent and the evident attributes. Generally speaking, something that focuses on the positive aspect (Yang) tends to be exterior and reveals the evident attribute. On the other hand, something that focuses on the negative aspect (Yin) tends to be interior and implies the latent. Such rule also applies to literary works. This article exemplifies motif in literary works to demonstrate the Yin-Yang dualistic interaction between the latent and the evident attributes.