Cultural Fugue

I'm having some trouble understanding a lot of this book. One problem is I don't really know what the Cultural Fugue is. Is it some sort of disease. Is it access to a certain type of weapon? My most educated guess, at this point, is that it is condition of society, like revolution, which ultimately leads to the destruction of all life on a planet. However, I don't really know what the condition involves. If anyone could point out certain passages for me, with regard to the Fugue, I would be very grateful.