The term “required” is employed in literature to signal necessity, obligation, or the fulfillment of conditions that drive both plot and argument. In some passages, it denotes specific formal demands, such as the promise given to maintain personal honor [1] or the three months’ notice needed for an organizational amendment [2]. In other contexts, authors use it to convey abstract necessities, whether in moral judgment, as in the care needed for a sick child [3], or in technical descriptions, like achieving a precise electrical resistance [4]. Across historical and thematic boundaries—from philosophical inquiries into the necessity of nature [5] to the practical logistics of travel and war [6, 7]—it functions as a versatile marker that intertwines the concrete with the conceptual, ensuring clarity in the conditions or actions deemed indispensable.