IX. A Symptomatic Examination of the Astral Body

You see, it's like this: when this one is electrified, the astral body goes in, stimulates the heart to beat faster, because the electrical current takes over a task that the heart would otherwise have to do itself. So it can work faster in the heart. Now suppose, however, that the other nerve were to be electrified. Now the astral body wants to make the heart beat faster; but from the other side an obstacle is put in its way. As soon as it wants to start making the heart beat faster, it cannot through on the other side. This excitation (at the first nerve) is useful to it because it takes over a task from it. This excitement (the second) is harmful to him because it meets him halfway. If I could go into the heart and electrify it from there, it would also make the heart beat faster and faster. But if I electrify this nerve from the outside, the astral body cannot move the heart because there is more and more of an obstacle.