Hopi  legend tells that the current earth is the Fourth World to be inhabited  by Tawa's creations. The story essentially states that in each previous  world, the people, though originally happy, became disobedient and  lived contrary to Tawa's plan; they engaged in sexual promiscuity,  fought one another and would not live in harmony. Thus, the most  obedient were led (usually by Spider Woman) to the next higher world,  with physical changes occurring both in the people in the course of  their journey, and in the environment of the next world. In some  stories, these former worlds were then destroyed along with their wicked  inhabitants, whereas in others the good people were simply led away  from the chaos which had been created by their actions. ( strangely like the theme of Saddam and Gomorrah scenario ) Two main versions exist as to the Hopi's emergence into the present Fourth World. The more prevalent is that Spider Grandmother  caused a hollow reed (or bamboo) to gro...