The other half of my wife's family are all Mormons. While they are nice folk, they all believe in the doctrines and covenants of Mormon. You can talk with them, they just never change. They know in their hearts they are right. This is about being under a strong delusion. They have the book of Mormon , the bible, the family, their church and their prophets to explain and guide them. They do consider themselves to be the restored true church. My wife's father was Mormon, somehow he met an Episcopal priest who was able to explain to him the errors, and he left the Mormons, created quite the rift him and the rest, however they were always nice to me and my wife. My wife's grandmother fully expected to bear spirit children in the next life and be worshiped as gods, her and her husband. And also that Jehovah God had evolved and so would they. It is honestly quite shocking what they believe and that they all of them do believe these things. None I met were ignorant, they were all well taught their delusions.