A testimony that shows what a danger comes from invoking spirits and dedicating to spiritism.
spiritism
Séances, magic, astrology
A testimony which shows what’s possible to happen when the spiritual development is not based on the relation with Jesus.
The kinds and levels of diabolic tormenting
Several kinds and intermediate levels of demonic interference can be distinguished, ranging from temptation to possession.
Who can perform an exorcism? Who is an exorcist?
In the Catholic Church, an exorcist is a bishop or a priest appointed by him, who has a special permission to perform exorcisms. The dignity of the sacramental and the nature of an exorcism require a special and explicit permission of a local ordinary (usually a bishop of the diocese).