Is there one thing in the world you would swap all your belongings for? and what would .......?

Simple answer really...No...that is a hard question,really. I know I would give anything.Guess I can't count for the rest of people but.I would give all if MY SON COULD SEE HIS DAD and I wouldn't care what it cost....my house.. my what? My life..this is what I'd give... Material things are empty...just empty...