The amazing thing you do not know about sleeping
Dreams are often filled with the role of playing strangers. Our minds do not dream the faces of strangers in the dream world, but they are the faces of the real people we have seen throughout our lives, but we do not remember them or do not know them. For example, the vampire devil you saw at your last sleep may have been someone who has been beaten up by your child or discussed with your father! We have seen hundreds of thousands of people throughout our lives, so our minds are the endless source of the characters who are dreaming.