this exact topic just came up in my Book Club, as we discussed The Dutch House. I think the objects in The Shadow King were all related in that they represented something the owner of each had lost (son and parents). These objects are the only physical "presence" of their loved one their owners have.
After our discussion about The Dutch House, a book club member found the quote "things are just things" in another book she was reading. I think in this case the quote does not apply. Each of the characters found strength and courage in their precious objects- -Hirut always named herself as the daughter of Getey and Fasil. The rifle was an extension of her father and all Hirut had left. It soothed her and kept her centered. look at the author's dedication: To my father for never leaving me, even though you are gone.
Ettore finally heard the words he wanted to hear from his own father-the letter gave him what he always wanted most.
We relocated across the country several years ago. We disposed of most of our personal belongings. I struggled with my son's baby clothes, bedding, and toys. In the end, I opted to rent a small storage space. My memories are still too heavily linked with those items to be able to let them go.