I see in the future what I've seen in the past. You know well the pattern of our affairs, Jessica. The race knows its own mortality and fears stagnation of its hereditary. It's in the bloodstream - the urge to mingle genetic strains without plan. The Imperium, the CHAOM Company, all the Great Houses, they are but bits of flotsam in the path of the flood.

Frank Herbert (1920 - 1986) - a genius

Dune is widely regarded as the best Science Fiction Novel ever written. My question is :What did the author really mean by this strong statement?

Gandalf