Affairs of the heart

Affairs of the heart, while so intimate and personal on some levels, have an enormous impact on world affairs.  How much happens politically (in the broadest sense of the word) that is motivated by either love or hate?  Perhaps a better question would  be:  how much happens politically that is NOT motivated by love or hate?  The realm of the heart is through-and-through territory of dreams.  The language of love is interwoven with the language of dreams.