Tucked away in our subconscious is an idyllic vision. We see ourselves on a long trip that spans the continent. We are traveling by train. Out the windows, we drink in the passing scene of cars on nearby highways, of children waving at a crossing, of cattle grazing on a distant hillside, of smoke pouring from a power plant, of row upon row of corn and wheat, of flatlands and valleys, of mountains and rolling hillsides, of city skylines and village halls.

 "When we reach the station, that will be it! "we cry. "When I'm 18. ""When I buy a new 450SL Mercedes Benz! ""When I put the last kid through college. ""When I have paid off the mortgage!""When I get a promotion.""When I reach the age of retirement, I shall live happily ever after! "