143. How do cultures progress and decay?
If the soul were created at the same time as the body, the humans of today would be as new and as primitive as the humans of the Middle Ages. But why, then, are their habits more benign and their minds more developed? If in the death of the body the soul leaves the earth for good, we must ask further: What would be the result of the work done to improve a culture if it had to be recommenced with the new souls arriving each and every day?
Spirits incarnate into a sympathetic environment and according to the level oftheir advancement. For example, a person in one culture, who has progressed sufficiently but who did not find in that culture an environment corresponding to the level he or she has reached, will incarnate in a more advanced culture. As a generation moves a step forward, through syrnpatihy it attracts new arrivals of more advanced spirits who perhaps might have previously lived in that same country and progressed. It is thus that, step by step, a nation advances. If the majority of the new arrivals were of a less evolved nature, and if the former inhabitants departing every day did not then return to a worse environment, the culture would decay and end up dying out.
Comment: Such questions give rise to others which find their solution in the same principle; for example, where does the diversity of cultures on earth come from? Are there cultures that rebel against progress? Is the black race capable of attaining the level of the European? Is slavery useful to the progress of less evolved cultures? How can the transformation of humankind, take place?