‘It depends on the way ye’re using the words. If they leave that grey town behind it will not have been Hell. To any that leaves it, it is Purgatory. And perhaps ye had better not call this country Heaven. Not Deep Heaven, ye understand.’ (Here he smiled at me.) ‘Ye can call it the Valley of the Shadow of Life. And yet to those who stay here it will have been Heaven from the first. And ye can call those sad streets in the town yonder the Valley of the Shadow of Death: but to those who remain there they will have been Hell even from the beginning.’
C. S. Lewis, The Great Divorce, p. 68