What are the seven speres of spirit world according to the spiritualist church?

The whole idea is a childish fusion of planetary astronomy and extrapolated Astrology- there are two lower spheres possibly as houses of correction for well, sinful but correctable types- most souls go to the Third sphere , or Summerland which is much like Earth but has no problems, bad weather, crime, etc, aided by spiritual exercises ( not the Jesuit variety!) and I would assume logging a fair amount of contacts with earthbound souls- the spirits project upward in the spheres- There are seven normally ( if you believe this stuff) accessible to normal souls- note the similarity to the seventh heaven concept= at one time only 7 planets were recognized. Uranus is no.7 really this is way out and best left alone. Earth is the third planet from the Sun, but the paralell univ erse angles are- well rather amateurish science-fiction.