First the word spirit is used in reference to the surviving soul of a dead person, which, under certain circumstances, is drawn to the earth and can “communicate” with the living.
A second category of spirits could be entities of another dimension, benevolent or malevolent, which sometimes are released by prophets for a mission among humans.
In a third category fall the spirits of nations (principalities).
Lastly, in a fourth category I would put...
