About a decade ago I read a pretty cool book written in 1976 entitled, The Origin of Consciousness in the Breakdown of the Bicameral Mind, by Princeton University professor Dr. Julian Jaynes. It was a fascinating read. Jaynes attempted to take a look back through history to see from whence consciousness sprang. One of the most interesting ideas was that humans did not start off being conscious, and had to develop into consciousness, as consciousness requires language sophisticated enough to generate metaphor and analog models. Metaphor (using a known thing to describe something unknown) and analog models (i.e. making a map of a territory to represent an actual, much larger parcel of Earth), he stated, were a great development as a shortcut to learning and as tools to free up enough 'mind space' for consciousness to develop. He also showed that language is primarily a tool for thinking, not for communication. Without words, he contends, consciousness would not be possible. Words are all short representations of things in the actual world or abstract concepts, and concepts allow us to group things to classes (i.e. the concept of round - the moon, a wheel, my lover's pupil, etc. are all round). I think of it like having many data on a pc, but not being able to organize it into files and folders. It would be nearly impossible to locate useful data randomly in order to get anything done. Being able to think in words and concepts greatly reduces the time and effort it would take otherwise in a one precept or one noun at a time type way. And according to Jaynes (and I tend to agree) without them, we would not be thinking consciously at all...