Eighteen Japanese tales of the ikiryō — the ghost of a person still alive.
A living spirit is the soul of someone who is not dead. That is the whole of the definition, and it is where the agreement stops. In these records the dead are not the danger. The danger is someone asleep in her own bed, or at her own work, in the place she is every day — while her soul is somewhere else, being seen, plainly and in daylight, by people who know the face.
Not all of it is frightening. Some of it is sad, and some is gentle, and the gentleness is its own kind of trouble. In more than one account nobody is punished, no priest is called, and the entry simply ends.