There is no difference in location from earth plane, where people in the flesh are living, and the lower levels of the spirit world, it begins right here. But the dark levels, as I understand, are located even lower than earth plane. I’ve learned that the low spirits often visit mortals during the night because they do not feel comfortable in the light. Sometimes, if or when a spirit finds they have progressed to a higher level and doesn’t know how they arrived there, a guiding spirit might inform them that they’d paid their compensation in the lower level, for transgressions committed on earth, and became eleveted in their soul condition to reside in a higher plane.
The first sphere of the spirit world is the most populated by spirits with a wide variety of beliefs, and they do not know how to find their way onto a pathway which would lead them to happiness and fulfillment. Spirits congregate with others of like mind and condition. They find comfort in the company of spirits who are in accord with their view points and enjoy the same kind of activities. Strange as it may seem, oftentimes spirits do not even realize they have died because, of course, they haven’t, they just left their body of flesh. After a brief meeting with friends and relatives, when a spirit first arrives in the ethereal world, they are escorted to a plane which is exactly suitable for the condition of their soul. If a person has lived a good life and developed their souls’ love-nature by being kind, helpful, giving and generally doing their best to become loving people, they will go into a light and harmonious entry-level plane.
Spirits always progress as they strive to learn and grow. The spirit world planes stay pretty much the same century after century, it is the spirits who change and continue their progression to higher and brigher levels. Even the angry or negative spirits can progress from their dark planes, when they become aware that they can be forgiven for their wrong doings. They need to pray for God’s Mercy. They need to be remorseful for unloving acts they committed during their earth life, and pray for forgiveness for those transgressions which may have been hurtful to others. Seek forgivness and you shall receive Mercy from a Loving God, a Beneficent Being and Caring Soul, Who has no wrath. There is no such thing as eternal damnation from our Loving Creator. Amen