The word “essential” is used in literature to signify something that is indispensable or fundamental to an argument, character, or process. Authors employ it to indicate that certain qualities or components are of primary importance—for instance, distinguishing an element that holds more value than another [1] or emphasizing an inherent inequality between forces shaping nations [2]. It also serves as a marker of core realities, whether in perceptual processes [3], the underpinning of moral interests [4], or even the irreplaceable nature of a cherished person or thing [5]. In each context, “essential” connects the abstract with the concrete, underscoring that what is truly indispensable remains central to understanding the narrative or argument.