IX. A Symptomatic Examination of the Astral Body

You see, gentlemen, I will tell you something else: Imagine there is a person's heart. It sits there. Two nerve cords go to the heart. They start from back there, go down there and go to the heart. One goes and then spreads out in the heart. Then another goes and also spreads out in the heart. Now imagine that I am passing an electric current through the nerve. I can observe something remarkable: the heart starts beating faster and faster. Why? Because the electric current excites the nerve, the heart starts beating faster and faster. The electric current excites the nerve.