The Spirits' Book
Book Two - The Spirit World
Chapter VI - Spirit Life
Choice of Trials
272. Can spirits be born among civilized people if they came from a world that is lower than Earth, or even if they were among the lowest members of the human race, such as cannibals?
“Yes, such spirits sometimes come into your world by trying to reach a degree that is too far above them. However, they are out of place among you because they have instincts and habits that clash with yours.”
These beings introduce cruelty and barbarism into civilization. For them, returning among cannibals is not a step down, but only resuming their proper place, and they may even gain by doing so.