21. The Health Fever in the Light of Spiritual Science
Physically and chemically, the animal body is an impossible mixture. The life body is therefore a necessary link for its sustenance. The astral body contains the causes of what happens in the physical and etheric bodies. The astral body in an animal has no such wide-ranging potential for individual development as it does in a human being. It is a tightly closed circle of animal instincts, desires and passions. The animal fits perfectly into its circumstances, and that with its physical, etheric and astral bodies. The captive animal can only be taught different habits with regard to the physical and etheric bodies, but it is not possible to influence its astral body. This is why the animal cannot integrate itself into new circumstances in a healthy way, because this would have to start from the astral body.