"Spiritual warfare" refers to the Christian concept of a personal battle against malevolent supernatural forces. Christian demonology affirms the existence of evil spirits with the ability to affect human affairs; the concept of spiritual warfare has arisen from this ideology as an effort to counteract these evil forces.
Prayer, exorcism, fasting and various other methods are employed by Christians wishing to fight back against malevolent spirits affecting their lives. Many practitioners of spiritual warfare view these acts as not only their religious duty as a representative of God, but also as a method of personal improvement. Spiritual warfare may take many forms, from everyday religious acts such as prayer to extreme rituals like exorcism.