Initiates and Clairvoyants
We know from elementary Anthroposophy that man consists of physical body, etheric body, astral body and Ego. The moment we are no longer observing man on the physical plane but rise into the spiritual world, the difficulties begin. When we have a human being physically before us, we see a unity formed by physical body, etheric body, astral body and Ego. Whoever observes a human being during waking life has all this before him as unity, but if it is necessary for some reason to rise into the higher worlds in order to observe a human being, the difficulties at once begin. Suppose, for example, we wish to observe a human being in his totality while he is asleep during the night, and rise into the world of Imagination in order, let us say, to perceive his astral body—which is now outside the physical body. The human being is now divided into two. What I am describing will seldom occur in this particular form, for observation of the human being is comparatively easy, but it will help to convey an idea of the difficulties in question.