You can understand anything you'll need from knowledge the theoretical learnings and ideas of Ruqyah, the sorts of spiritual sicknesses, the etiquette of practising Ruqyah, its simple applications, and also implementing the supplications, Quranic verses, salawat and manzil to accomplish Ruqyah. Muslims feel that spiritual beings (Particularly the jinn) https://youtu.be/dWJRWF1WpZY