Ghosts, we hope, may be always with us - that is, never too far out of the reach of fancy. On the whole, it would seem they adapt themselves well, perhaps better than we do, to changing world conditions - they enlarge their domain, shift their hold on our nerves, and, dispossessed of one habitat, set up house in another. The universal battiness of our century looks like providing them with a propitious climate.
Solitary and farouche people don't have relationships; they are quite unrelatable. If you and I were capable of being altogether house-trained and made jolly, we should be nicer people, but not writers.
In big houses in which things are done properly, there is always the religious element. The diurnal cycle is observed with more feeling when there are servants to do the work.