There's a little railway station
In the countryside near here
And a little old steam engine
Stops there just one day each year
With its little wooden carriages,
Where it comes from no-one knows,
But I once bought a ticket
And I do know where it goes.
It was just a one-way ticket
And it's just a single track,
It took me somewhere special.
But it didn't bring me back.
Terry Donovan
http://www.poemhunter.com/poem/train-of-thought-2/