All Hallows Eve...

All houses wherein men have lived and died
Are haunted houses. Through the open doors
The harmless phantoms on their errands glide,
With feet that make no sound upon the floors.

We meet them at the door-way, on the stair,
Along the passages they come and go,
Impalpable impressions on the air,
A sense of something moving to and fro.

There are more guests at table than the hosts
Invited; the illuminated hall
Is thronged with quiet, inoffensive ghosts,
As silent as the pictures on the wall.

The stranger at my fireside cannot see
The forms I see, nor hear the sounds I hear;
He but perceives what is; while unto me
All that has been is visible and clear.
Henry Wadworth Longfellow: Haunted Houses