The distinction between neutral hydrogen and ionized plasma provides a usefulobservational framework for understanding organizational state within SP3 (Space-Phase)theory. Recent SP3 analysis of spectral-line phenomena extends this framework further byexamining the temporary incorporation of photon energy into atomic organization.Together, these observations suggest that nature may not contain a single category called“matter,” but rather a hierarchy of organizational states possessing different degrees ofdurability. Photons appear as transient propagating organizations. Excited atomic statesrepresent temporary incorporated organizations. Neutrons may occupy an intermediatesemi-durable category. Electrons and protons exhibit extraordinary persistence and maytherefore represent durable organizational structures. Larger-scale systems such asplanets, stars, galaxies, and the cosmic web emerge as nested durable architecturesassembled from these more fundamental persistent units. This paper develops theproposition that organizational durability itself may represent a primary characteristic ofnature and that spectroscopy provides one of the clearest observational windows intotransitions between propagating, temporary, semi-durable, and durable states.