Most of us are unable to sort out reality — we can't distinguish between a thing and a symbol for that thing. This springs from several causes. One cause is that we are isolated from the natural world, where the distinction between a thing and a symbol is more obvious. Another cause is our educational system, which simply reflects the intellectual laziness of the society in which it is embedded. A third cause is resistance on the part of vested interests — if we could think creatively, we would be difficult to govern, and advertisers would have to appeal to reason instead of emotion.