I discovered this website only yesterday and I would like to share my foundings. Yesterday I was reading Carl Gustav Jung's book "Memories, Dreams, Reflections" and I came across an interesting passage about geometric dreams of sizes. Then I remembered having them too when I was a child and a teenager (now I'm 23 and I don't have them anymore). The dream always began as just a grey background. Then, something as small as a tiny snowflake appeared. The smallness of the object was terrifying. Then it became huge and extremely heavy, simply crushing. I saw something like a giant boulder that crushed my whole existence. I recall seeing some kind of a grey man-like figure carrying the rock, as if it were Atlas carrying the whole world. The dreams were extremely terrifying and I feared them. I now sometimes dream of counting, and then it feels as if I am trying to solve mathematical equasions all night long and don't get any rest.

So, I would like to share the passage from Jung's book that triggered my search on the Internet and finding of this website: "I had anxiety dreams of things that were now small, now large. For instance, I saw a tiny ball at a great distance; gradually it approached, growing steadily into a monstrous and suffocating object. Or I saw telegraph wires with birds sitting on them, and the wires grew thicker and thicker and my fear greater until the terror awoke me. Although these dreams were overtures to the physiological changes of puberty, they had in their turn a prelude which occurred about my seventh year. At that time I was sick with pseudo-croup, accompanied by choking fits. One night during an attack I stood at the foot of the bed, my head bent back over the bed rail, while my father held me under the arms. Above me I saw a glowing blue circle about the size of the full moon, and inside it moved golden figures which I thought were angels. This vision was repeated, and each time it allayed my fear of suffocation. But the suffocation returned in the anxiety dreams."

This is actually the first instance in books that I've encountered regarding these dreams. Also, there's a brief explanation that they may just simply be a result of growing up.