The Spirits' Book
Book Two - The Spirit World
Chapter XI - The Three Kingdoms
Animals and Humans
601. Do animals obey a law of progress like humans?
“Yes, and it is for this reason that animals are more advanced in the higher worlds where humans are more advanced. They possess more developed means of communication. However, they are always inferior to humans, and act as their intelligent servants.”
There is nothing irrational in this statement. Imagine that our most intelligent animals, the dog, elephant and horse, had a body structure ft for manual labor, what could they not accomplish under the leadership of humans?