In spiritual terms, the occupancy of other soul(s) influencing the actions of someone or something; obsessed.
Unless a person is in a condition to be obsessed, the natural law prevents this from happening. It is only when an individual creates a condition for possession that this occurs. The same law works when an individual is filled with a desire for love and service--higher beings are attracted to use that person for good. The law works for the betterment or the detriment of people, it merely depends on the way we choose to apply ourselves to it.