Lecture III

In one domain, and in one only, modern science has still a clear perception of how things really are. In its study of the organisation of the eye, physics proceeds in a way that one could only wish might be followed in many domains. The eye is regarded, as you know, in physics as a contrivance, a mechanism, an instrument that works in accordance with the laws of physics. In order to come to a clear comprehension of the eye, the physicist makes drawings of it, in which he demonstrates the refraction of light through a lens, the formation of the objective picture, and so forth—the very same kind of drawings as he would make for a mechanical instrument. What the physicist is unable to do is to pass on then to the way in which the element of soul enters into this mechanical instrument. The whole thing is exceedingly interesting. The physicists have before them this complete picture of the eye. But there they come to a standstill. What they would like to do is to find their way to the element of soul through the brain. Just look at all their queer somersaults in thought, all those interesting, but in fact nonsensical theories of psycho-physical parallelism or interaction! The truth is that the ego organisation and the astral body come straight into the physical eye itself, the eye that we can draw and describe; there, within the eye, the ego and astral body take immediate hold of the physical. Nevertheless, just in the case of the eye, the scientists do, as you see, come very near understanding the true state of affairs. They can, in fact, hardly help doing so, owing to the peculiar seclusion of the eye; for the eye lies almost outside the body, it is built in from without during embryonic development. And so, in the case of the eye, a certain measure of understanding is attained. But the fact is, what is thus seen to be true of the eye holds good for the whole human organism. The whole human organism has to be understood in the light of an inner physics, a spiritual physics, a physics that allows for the subtle, more fleeting light-forces to be added to the earthly forces. We must learn to recognise the presence within the human organisation of something which comes in reality from the environment, something of which the soul-and-spirit of man lays hold, directly, notwithstanding that it is purely physical, having been constructed in accordance with the laws of physics.