How does sentiment affect their life?

Does your character have sentimental items? What are they? Where did they come from? Where do they keep them? Often times, a character’s sentimental items tell a lot about them. You can show that someone’s dad is important to them by the photos, objects, etc, given to them by their dad that they keep in their room. What sentimental items represent who they are? What about their values? Figuring this out and showing it through setting is vital.