Lecture I

So, the first thing we have to look at, where we are seeing, are processes in the ego and the astral organism. With the eye, there comes into consideration (just see for once the complicated way in which the eye comes into consideration) that man has a kidney system,—I design it here schematically (diagram, dark blue). This kidney system belongs first of all to the physical organism of man and has in itself parts that are solid. You know, I have told you quite often: man does not have so extraordinarily much of the solid, the mineral, in himself: 90% of him is a column of water. Nevertheless, he has firm parts in himself. These solid parts really swim continuously in a liquid; in something watery. Therefore we have to look at the kidney system as the starting point of the watery, which is not only there in excretion of the kidney system, but goes through the whole organism; among others, it also goes up to the eye.