The full quote was: “You really feel the passage of time and the different chapters of your life through the ornaments.”
She’s clearly talking about her own life story and its various stages, including her life before Harry and her chapter in the UK .
That’s why newspapers (The Times, The Telegraph and The Independent) have picked up on it and why they find it a bit amusing, as she’s reflecting on her “different chapters,” yet she’s estranged from the very people who would appear in them.