Families are close knit in the Jewish community. We hold onto objects that have value to us from our relatives and ancestors. An outsider may not understand the value of an object, until its story is heard. Then, the object is priceless and a bond grows within the family.
Ancestor's possessions are important because they are real examples of objects used in their time period. They help us to understand what life was like back then. They can also describe places or events in that time period. They help us to comprehend and understand our heritage.