You did not remember how it happened. Perhaps it was an accident. Perhaps you were a president and got assassinated. Perhaps suicide, or maybe other causes. The point is that you are dead, and that you are not in the afterlife. You do not believe your body would be stowed away in here, the old, massive medieval catacombs, you guess that ghosts do exist after all, and perhaps for the first time in your life you think that magics do exist, and that you are being summoned by a necromancer. But as you walk towards the scent of the magic, blindly navigating through the labyrinth filled with slots, some with skeletons inside, you notice a slight change as you go on. The grey, cracked walls grew more and more coarse, and splitting paths seemed more and more chaotic and cave-like. The skeletons were thrown carelessly on the floors, as if eaten by something ahead. You are not scared, of course, since you're dead.
Soon you realize you are in a completely different world than yours, or on the universe for that matter, because as you walked on you find holes in the subterranean walls, and looking through them you see visions of technologies in the past, present, future, and that would never come in the lifetime of this network of multiverse. As you walked onward, the walls grew more solid again, and occasionally you find lanterns along them. The passage widened, imperceptibly at first, and then became obvious. The floor vanished away abruptly in the darkness, and you find that you are able to glide across. Strange colorful light seemed to blink from inside the abyss, some even in a color you have never seen before. Finally you are faced with a black, metallic wall. You would have thought you have reached a dead end, but then you saw a huge hole above, intense necromantic magic seeping through it, scent so powerful that it have led you through your death towards this place.
Hovering up with your ghostly power, you find that the hole is a keyhole, and then you went through it into the room beyond.
Several men and women stood there, obviously from your world. Presences of many others filled the room, but you were unable to see them with your puny mind. You were about to try and communicate, when a voice boomed.
It changed tone rapidly as it spoke in language unknown, or even beyond your comprehension as it addressed the several entities here. Your reality was kind enough to warp the time, and sped you, and all other humans to the start of its speech in your language.
It still spoke many language, in many tone, which would make your head feel like splitting if not for the fact that you do not possess a head, or a body for that matter. But when it spokes your language your understood.
"GREETINGS! I CAN GIVE YOU a more detailed description of WHO I AM! But that would probably make your MIND SHATTER INTO PIECES. So let's cut to business. I AM ALLOWING YOU ALL A SECOND CHANCE IN LIFE, but with a catch. I WILL SEND YOU TO an expendable alternate universe identical to yours, AND YOU WILL POSSESS containers of MORNING COMESTIBLES. Because of the tear in SPACE-TIME you will possess minor POWERS TO WARP THE REALITY. don't abuse it, though, UNLESS YOU WANT TO MAKE REALITY ANGRY."
And mercifully the chaotic voice stopped. You feel the presences in the room disperse in a speed so fast beyond your understanding. All you knew, though, is that you, and many other humans, are being sent throughout the Earth. Not your Earth, but Earth nonetheless.
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You thought that you would be in your original body, and by saying "POSSESS containers of MORNING COMESTIBLES" you have understood that you will have boxes of cereal for some reasons. But now you find yourself in a strange vessel, because you ARE a container of morning comestibles.
Reality was temporarily torn asunder, and pieced back again. You do not possess eyes, but yet you could see around you, your field of vision is normal, but you could now move your head around with your thought, and that your head can rotate in any direction.
You can't see much, though, since it's pitch black. You must be in a cupboard or something.