The material stuff that is our stuff that we have stowed away for years:
It invariably contain emotional landmines.
Memories of who we were, wanted to be, and what happened. And did not.
What makes it especially fraught is that one can never predict what will stir a deep emotional wound: A cashier slip for three items bought decades ago packs more power that seems reasonable.
But then, our emotions about the past rarely is that.