Grandfather Martin showed me a unique book of maps titled Cycles: A View of Planet Earth from 4 Million BC to 15,000 A.D. This proved challenging to track down later, as it was published in South Africa and seems to have always been relatively obscure. It is of particular interest to those who are studying Pole Shifts, Earth Changes, and alternative Earth histories (alongside Lemurian Scrolls by Satguru Sivaya Subramuniyaswami, which can be read online for free here).
Pole Shifts figure prominently in Western esoteric theory, having been popularized by the predictions of Edgar Cayce. The idea is that the earth's crust rests on a molten inner layer and that at periodic intervals it experiences a dramatic reversal in which it flips over and the North Pole occupies the Southern position and vice versa. This is obviously a catastropic event for surface-dwellers. Another type of pole shift, a geomagnetic pole shift, is less cataclysmic and consists of a reversal of the planet's magnetic poles only. Case's Association for Research and Enlightenment says his trance-predictions sometimes referred to the first kind of pole shift and at other times the second.
The image at right shows a map from Cycles that depicts a possible pole shift. (Click on image for larger version.)
In Hopi cosmogony (their story of the universe's origins), the world's formation was assisted by a set of twins named Poqanghoya and Palongawhoya. The first sibling was responsible for making the earth fully solid, while the second was responsible for sending sound out to resonate through the vibratory centers that run along the planet's axis. After traveling throughout the world, one took his place at the North Pole and the other at the South. It is said that if either of them were to leave their post, the world would spin off its center and be destroyed.In Hopi belief, all life is interconnected, and the fate of the world is intimately related to human activity and particularly our emotional health. Each community, it's said, was given a "life-map" by the Creator and, if we followed its guidance, our prayers and religious ceremonies would help keep life on the planet in balance. When we abandon our ancestral traditions and turn to materialistic, egocentric lifestyles, over time this will have a visible effect on the weather and the natural world.
I would like to add to all this that "Earth" does not only mean the planet we collectively inhabit; it also refers to the "world" each one of us lives in -- our unique cognitive models of reality, and especially the physical body, which is said to contain the entire universe within it. So when we're talking about Pole Shifts and the End of the World, these have both inner and outer meanings.