Answer:
The various forces in the play were the good and bad spirits roaming in the free world and taking form in the body as the medium. The treatments usually include exorcism and separation of the evil spirit from the body with the help of the religious texts and artifacts.
Step-by-step explanation:
The "possession" was assumed to involve good spirits or evil spirits
If a person's speech/behavior appeared to have a religious or mystical significance, it was usually thought that he or she was possessed by a good spirit or god. Such people were often treated with considerable awe & respect, for people believed they had supernatural powers.