Need to know that a Patronus will take on the same form as the witches’ Animagus. While other witches or wizards have theirs appear as an animal. In the Harry Potter universe, you can find several witches or wizards that will never have a corporeal Patronus such as Neville. Professor Remus Lupin said that a Patronus will only work if the witches or wizards concentrate with all their strength on one particularly happy memory.Ī Patronus is unique and very personal for witches or wizards. However, the Dementors cannot feel despair like the real humans can. Also, it is a kind of positive force, a projection of the things that the Dementor feeds upon hope, happiness, the desire to survive. The spell requires the witches or wizards to visualize their happiest memory and hold onto it tightly to create a shield for protecting themselves from Dementors, the guardians of the wizarding prison, Azkaban.Īs Professor Remus Lupin explained, a Patronus is a guardian that acts as a shield between a witch or wizard and the Dementor. Even some of the most advanced witches or wizards struggle with it. It is a powerful spell, but it is not easy to cast. This is will only work properly, if a wizard have positive energy and thoughts.Ī Patronus in the Harry Potter universe is a form of advanced magic. The Witches and Wizards Who Can Cast a Patronus.