Why should we represent human faces in suns, moons, stars...? Does--can--anthropology, psychology, or literary theory provide an answer? If so, how might we understand the significance of that answer, if indeed understanding or significance have any meaning in this context? And, alas, what is this context?

Unknown German Artist - Splendor Solis, c.1582 Tempera on vellum, highlighted with gold, 32 x 22 cm British Library, London. (Copies in Berlin, Paris, Madrid and Nuremberg).