Multiverse

 Multiverse means group multiple universes, in movie Dr. Strange in the Multiverse of Madness explains the presence of multiple universes, with the use of some powers you can shift from one universe to another. How is it look to get into the other universe although we believe in it religiously, there is heaven or hell, the sifting only possible in case of death. There is existence of many universes, millions and billions of stars present in the solar system but to move there, it will be larger force energy needed like to move from one planet to another.