The iconography operate simultaneously at the levels of naturalistic detail, the
iconography includes religious symbolism, although the extent and exact character of this is much debated - Meyer Schapiro established the study of the symbolism of the mousetrap, and Erwin Panofsky later extended, or possibly over-extended, the analysis of symbols to cover many more fine points of the furniture and fittings. Similar argues exist for many early Netherlandish paintings, and lots of of the details seen for the first time here re-emerged in later Annunciations by other artists.