As Priscilla Long says in WPM (Writer's Portable Mentor), "rooms stand for lives; objects hold history." Giving our characters objects that represent a more than humble existence or putting them in a dining room as exquisitely decorated as in Downton Abbey, gives one a feel for the kind of life each exists in.
"Settings mirror lives," Ms Long states. Settings and objects are interrelated since objects in a setting help define the character that would be found in such a setting. "A room can stand for a character's mood - it can look dreary or the dust can dance. We can deepen our work by observing setting and objects (places and things) and using them to enrich every page."