The word “external” in literature undertakes a range of meanings depending on its context, spanning from the metaphysical to the practical. Philosophers like Kant use it to delineate the realm of objects of perception apart from the mind’s inherent structure ([1], [2], [3]), while others employ it to indicate factors or conditions outside an entity’s internal essence, as seen in discussions of substances or societal influences ([4], [5], [6]). In scientific and anatomical texts, “external” highlights physical, observable characteristics or forces ([7], [8], [9]), and in political or social references it often signals influences imposed by the broader environment or external powers ([10], [11], [12]). Authors also contrast internal states with external appearances or conditions to illustrate ideas of authenticity, causality, or aesthetic form ([13], [14], [15]), thus revealing the word’s versatility in both abstract and concrete applications across literary genres ([16], [17], [18]).