The ethnographic record of the Dogon people, situated primarily along the Bandiagara escarpment in the Mopti region of Mali, has long functioned as a primary site of contention within the fields of ethno-astronomy, theoretical physics, and cultural anthropology. At the heart of this discourse lies the "Sirius Mystery," a term popularized in the late 20th century to describe the tribe's inexplicable knowledge of the binary star system Alpha Canis Majoris. However, as contemporary scientific discourse shifts toward the "Spacedepth" model—a framework emerging in 2025 and 2026—the interpretation of this knowledge is undergoing a radical transformation. This report evaluates the Dogon astronomical tradition not as a collection of anomalous facts potentially acquired through external contact, but as the evidentiary remains of a "4D living" modality. By applying the "4D lens" to Dogon ritual, linguistic, and symbolic structures, it becomes possible to posit that their understanding of the universe represents a direct perception of the fundamental "depth" dimension, rather than a mere secondary observation of the 3D projection of celestial bodies.