III. Sleep and Death

Just as the physical body, for example, needs the outer world, which is of like nature to itself, to supply it with the means of subsistence, something similar is also the case with the astral body. Just imagine a physical human body removed from its surrounding world. It would have to perish. This demonstrates that without the whole physical environment it is not possible for the physical body to exist. In fact, the entire earth must be as it is, if human physical bodies are to exist upon it. The whole human body is, in reality, only a part of the earth; indeed, in a wider sense, a part of the whole physical universe. In this respect its relationship is similar, for example, to that of a finger to the entire human body. If the finger is severed from the hand, it can no longer continue to be a finger; it withers. This would also happen to the human body were it removed from the organism of which it is a member, from the life conditions offered it by the earth. If we were to lift it a sufficient number of miles above the earth's surface, it would perish just as the finger perishes that has been severed from the hand. If less consideration has been given to this fact in respect of the physical body and the earth than in respect of the finger and the body, it is simply because the finger cannot stroll about on the body in the way that the human being walks about on the earth, and because in the former case the dependence is more obvious.