Life should NOT be a jounrey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, chocolate in one hand, latte in the other, body thoroughly used up, totally worn out and screaming. "WOOHOO, what a ride!"
Well it's kind of a "barter" or in other words, swap, that's what a barter is. :) Swapping something of yours for something of some one else's. That's why I figure it's there. :)