Lecture XIV
I must first of all repeat that the exclusively physical study of man only surveys a part and a comparatively small part of human nature This is for the simple reason that man contains the etheric body, the astral body and the ego, which are constantly working upon and moulding the physical organism, yet entirely inaccessible to external physical judgment—I use this term with intention and reference to what follows. At the same time it is not impossible for the human being to educate himself and evolve (granting steadfast effort) to the point of acquiring and assimilating a certain degree of clairvoyance into the operation of intellect and judgment. This will not yet mean the attainment of a proper clairvoyance associated with definite visual images, but it will be possible to attain a type of judgment capable of strong and reliable coincidence with the results of clairvoyance.