this makes a lot of sense
In ancient times the world of spirits was everywhere acknowledged because it was a matter of direct experience and open to all but the most insensitive. The world of spirits was as familiar to primitive man as is the dream world is to modern man. The spirit world became the later “spiritual” world after undue emphasis on mans’ mental development had obliterated the astral world in which he originally had moved with as much ease as in the mundane world.
Nightside of Eden