Every being on this planet, that includes the animals, plants, insects and the microbeings like atoms, has a parallell version of the body in the "spirit world", a double body, called the astral body, that fills the physical body and will continue to live after death. This body is the soul, while the spirit is an atom, the central atom of the astral body, which is also composed of atoms, spiritual atoms. This astral body is a dream body, where the dreams and feelings of a human is located, or call it the fantasy world of a human being. While the central atom is the centre of the core of the personality, the centre of will, thoughts, agape love and understanding.
If spirit and body is divided and not united, the astral or fantasy body goes to Hades after death. Hades is a dream world, a fantasy world where everything is possible. Here the astral body lives in a sleeping state, occasionally dreaming dreams, lucid dreams, until it is resurrected from death on the last day, the day of the return of Jesus. If spirit and body is united before death, in the state where they are in animals and small children, so that there is no difference between spirit and body, or they live together in harmony, where the body remembers the spirit fully, then the physical body and the astral body is resurrected at death, like how it happened with Jesus. Then the astral body does not go to Hades, it does not need this journey. It goes to a world, "the resurrection world of reality", where reality is a totality, a unifying whole, where spirit and body is one. This world is fully material and fully spiritual, and it is like nature in our world in all ways, just that it is a glorified world where there is no suffering. There is birth and death in this world (in Hades there is no birth and death), because it is a real world, not a ghost world, like Hades is. In Hades the central atom sleeps in the astral body, so that the astral body lies in the dust and sleeps. When your central atom is awake after death, then you enter the resurrection world of reality. In fact if you go to Hades after death, your central atom is sleeping while you still are alive on the earth, and you go around as a living dead. So if you are not fully like Jesus, and sometimes sin, you are living dead. So serious sin is. You have to be completely sinless for your central atom to be awake. Sin dulls the central atom and makes it fall asleep, which is the same as the body not remembering the spirit or the spirit world. You go around and behave like the spirit world does not exist. And then I mean the resurrection world of reality, not Hades. The resurrection world of reality should in fact be called the spirit world, because it belong to the spirit, the central atom, it is the world where the central atom reigns, is fully awake. Hades, usually called "the spirit world", should be called "the soul world" or "the astral world". All apparitions from "the spirit world" come in fact from the soul world, only the visions of the resurrected Jesus at Jesus' time were from the resurrection world of reality. No one can see God and live, but once it happened, and it altered the course of history totally.
Hades is a reflection or a shadow of the resurrection world of reality, and everything that is in the resurrection world of reality is in Hades, albeit in a dream state, a fantasy state, it's not the real thing. So when Emanuel Swedenborg (1688-1772) saw the spiritual Stockholm in a vision, he saw the reflection of the real New Stockholm in the resurrection world of reality, in Hades. He saw only Hades. Almost all visions of Jesus are from Hades. Heaven in Hades is really wonderful, and how it is built and is kept together is really a mystery. Jesus walks around in Hades too, he parttakes in our dreams there, just like he can show himself to people in their dreams during their lives on earth. All near death-experiences takes place in Hades.
A strange thing with the astral body is that when you lie in your mothers womb like a small fish, your astral body is a glorious, adult body, around 30 years old, and that you go into that body when you dream as a little child. You remember everything from before birth in the dream world, and is instructed by angels, and forget it again when you are awake. You can remember dreams, but the dreams when you remember the time before your birth you cannot remember, they are played out in a too high world, a too miraculous world, a too glorious world. This is also true when you are adult. You never remember the dreams when you converse with angels and with Jesus, and you do it a lot, and it is because that reality is too far from your waking reality. You have certainly observed that the strangest dreams are the most difficult to remember. We enter heaven every night, but we cannot remember it. There we discuss with angels how to cope with our daily life, we discuss our sins and our victories, and what we learn there is kept in the subconscious life in our soul. We are somehow programmed in heaven every night, we get instructions about what to do, but unfortunately everything is forgotten. It has to be so, otherwise we would not be able to have faith, and grow spiritually. Faith is what make us grow spiritually. We have to go into the dark tunnel to be able to have faith. And faith is the strongest deed we can do. That's why righteousness comes from faith, that's why we are made righteous by faith alone. It is real righteousness, not just attributed righteousness.