The result of an outer examination of this kind is intensified for the occult student by something else. It might be pointed out that the physical body is attacked by diseases. Now occult science is in a position to show that a large proportion of all diseases owe their origin to the fact that the perverse actions and mistakes of the astral body are transmitted to the etheric body, and indirectly through the etheric, destroy the perfect harmony of the physical body. The deeper connection, which can here be only hinted at, and the true cause of many of the conditions of disease, elude that kind of scientific observation which confines itself solely to the facts obtained by means of the physical senses. The connection in most cases comes about in such a way that an injury to the astral body does not cause manifestations of disease in the physical body in the same incarnation in which the injury takes place, but in a later one. Hence the laws now under consideration have a meaning only for one who is able to admit that human earth-life is repeated again and again. But even if deeper knowledge of this kind is rejected, ordinary observation of life makes it plain that human beings indulge in far too many pleasures and desires which undermine the harmony of the physical body. And the seat of pleasure, desire, passion, is not in the physical but in the astral body. The latter is still so imperfect, in many respects, that it is able to destroy the harmony of the physical body. It should also be mentioned here that such explanations as these are by no means intended as proofs of the assertions of occult science about the evolution of the four principles of man’s being. The proofs are drawn from spiritual research, which shows that the physical body has behind it a transformation, enacted four times, into higher degrees of perfection, and that man’s other principles have been perfected to a lesser degree, as has been described. It is desired merely to indicate here that these communications made by spiritual research relate to facts which are visible in their effects even to ordinary observation, in the degrees of perfection reached by the physical body, etheric body, and so forth. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐