"The earth rotates around an axis drawn from the south pole, through the planet, out the north pole, and up to the pole star. With a bit of imagination, diagrams of this world axis show a trunk with roots in the earth and the pole star at the top of the leader. Old Icelandic poetry tells us of the mighty measuring tree. The growth and life of this tree parallel the growth and life of this world, and none know where to find the beginning point of its roots."