In Christianity, deliverance ministry refers to groups that perform practices and rituals to cleanse people of demons and evil spirits. This is done in order to address problems in their life deemed to be manifesting as a result of demonic presence, which have authority to oppress the person. Believers attribute people's physical, psychological, spiritual and emotional problems to the activities of these evil spirits in their lives. Deliverance rituals are meant to cast out evil spirits, helping people overcome negative behaviors, feelings, and experiences. Each individual event is different, but many include some or all of these major steps: diagnosis, naming the demon, expulsion, and some form of action taken by the exorcised person after their exorcism to keep the demon from returning.