If you trace the history of sybolism, there are really some very basic urges that we as humans try to communicate. And, if poetry/language is the extension of sybolic progression, communicating the urges that express our humanity, then we are going to see some very primal images that can ususally be catagorized in a few basic groups, when it's all been anylized.
And, when we attempt to be transendent, and leave this earth and it's natural state, we touch briefly on something other than our self.
What really scares me is that I read recently that computers are the artists of the future and that their art is so going to exceed anything humans have ever produced that humanity's best will pale in comparison. Their art will be perfect. They are already producing. They will play instruments, sing, write stories, and write poetry around us. When they do, my question is this: what will they be expressing? Will they emote? Some think juiced up with a little chemical engineering, they will have feelings. So, thinking about that, I say let any human who dares to feel, feel and emmote, for tomorrow, you die.