The Spirits' Book
Book Two - The Spirit World
Chapter IV - Multiple Lives
Incarnation on Different Worlds
186. Are there worlds where the spirit, having ceased to inhabit a material body, only has the perispirit as an envelope?
“Yes and this envelope becomes so ethereal that, for you, it is as if it did not exist. This is the state of pure spirits.”
a) It seems as though that statement implies that there is no clear line between the state of the final incarnations and that of a pure spirit.