The general specific gravity of his own astral body tends to make him float below the surface of the earth.

The physical matter of the earth is absolutely non-existent to his astral senses, and his natural attraction is to that least delicate form of astral matter which is the counterpart of that solid earth.

A man who has confined himself to that lowest subdivision will therefore usually find himself floating in darkness and cut off to a great extent from others of the dead, whose lives have been such as to keep them on a higher level.
Divisions four, five and six of the astral world (to which most people are attracted) have for their background the astral counterpart of the physical world in which we live, and all its familiar accessories.

Life in the sixth subdivision is simply like our ordinary life on this earth minus the physical body and its necessities while as it ascends through the fifth and fourth divisions it becomes less and less material and is more and more withdrawn from our lower world and its interests.
The first, second and third sections, though occupying the same space, yet give the impression of being much further removed from the physical, and correspondingly less material.

Men who inhabit these levels lose sight of the earth and its belongings; they are usually deeply self-absorbed, and to a large extent create their own surroundings, though these are sufficiently objective to be perceptible to other men of their level, and also to clairvoyant vision.
This region is the summerland of which we hear in spiritualistic circles--the world in which, by the exercise of their thought, the dead call into temporary existence their houses and schools and cities.