Lecture III
You can also learn how sympathies and antipathies play a part in regard to the experience of the soul in the spiritual world if you will look with a certain amount of inner understanding at the chapter of my book Theosophy that describes the soul world. You will see there that the soul world is actually constructed of sympathies and antipathies. From my description you will have been able to learn that what we know as thinking in the physical sense world is really only the external shadowy imprint, called up by the physical body, of the thinking that, lying in occult depths, can be called a true living force. As soon as we enter the elemental world and move with our etheric body, thoughts become—one can say—denser, more alive, more independent, more true to their own nature. What we experience as thought in the physical body relates to this truer element of thinking as a shadow on the wall relates to the objects casting it. As a matter of fact, it is the shadow of the elemental thought-life thrown into the physical sense world through the instrumentality of the physical body. When we think, our thinking lies more or less in the shadow of thought beings. Here clairvoyant spiritual knowledge throws new light on the true nature of thinking. No philosophy, no external science, however ingenious, can determine anything of the real nature of thinking; only a knowledge based on clairvoyant consciousness can recognize what it is.