And possessions can work this way too. Our house is chock full of stuff, but it's stuff that we have acquired during extensive travel around the world. Every tchotchke reminds us of some place we've been and the experiences we had there. The stuff is meaningless to everyone else but full of meaning for us.

Case in point: I have a cheap stuffed animal in the shape of a lobster. Out of context it's a piece of junk. But when you know that I bought it to commemorate the very first ad ever placed on Adwords (I was the lead engineer on that project back in 2000) -- a company called Lively Lobsters -- it takes on deep significance.