At first glance, moving might not seem that complicated. As Bill likes to say, "You put the stuff in a box, you put the box on a truck, you drive the truck to the new place, you take the box off the truck." Not much to it.
So why, when the truck is loaded up and full of boxes do people often say, "Be careful -- you've got our whole lives in there!" ("We've got all your possessions," I sometimes tease, "but you wouldn't let us pack your souls.")