In Christianity, deliverance ministries involve the individuals from a particular group who perform rituals along with many practices in order to cleanse the soul of people from dark and evil spirits. The reason why demons are cleansed from their bodies is to address the problems they are dealing with due to the presence of negative powers and spirits.
Christian deliverance ministry focus on tearing down the stronghold of evil spirits on your life. Their aim is to solve the problems and worries off human-related to demons and bad spirits. By removing the demons, they claim victory in Christ.