The word "underlie" is frequently employed in literature to convey the idea of a foundational layer that supports or gives rise to a more visible or immediate phenomenon. In some instances, it is used in a literal, physical context, as when geological layers beneath rock formations are described ([1], [2]), or when Thoreau envisions the sleepers beneath the railroad as the hidden underpinnings of infrastructure ([3]). In other works, the term adopts a more abstract sense, suggesting underlying causes or principles that inform thoughts, emotions, and even the human condition. For example, Helen Keller reflects on fundamental facts of existence that underlie physical reality ([4]), while Freud and Nietzsche explore the less tangible, psychological or moral conditions beneath dreams and conflicting desires ([5], [6]). Similarly, sociological and philosophical texts examine the deep-seated sentiments or conditions that underlie ideas and beliefs, whether it's the emotional substrate of our constructs ([7]) or the universal human condition described by Emerson ([8]). Even in logical discourse, as seen in Dewey's work, "underlie" denotes the basis that upholds conclusions ([9]). Collectively, these examples illustrate how the term bridges the concrete and the conceptual, serving as a linguistic tool for exploring both the physical foundations and the deeper, often unseen forces at work in our world.