i never understood the meaning of ghaibat
some say he has a special dress that makes him completally invisible for the human eye (and het cant be seen by anyone) and there are also saying that he dwells trough the world but isn't getting recognised, I also heard that our imam (عليه السلام) is not only in occulation for the human eye but also for the unmaterialistic- life such as djins..
and what we often forget how about khidr (عليه السلام) i know allah sends khidr when as company to not feel lonely.. but is he himself too in a ghaibat?