With respect to life in the domestic sphere, marriages in the Middle Ages were marriages of convenience, made sacred by those clergymen in the sacrament of marriage.  Love posed a danger to that.  Woman was called the Gate of Hell because of her seductive beauty and the danger of love.  This situation of a sacramentalized marriage without love being the norm brought about a powerful reaction in the aristocratic circles, and this is the reaction represented in troubadour poetry and its ideal of love.   RG 26

One of the strongest influences on the troubadour tradition, of course, was that of the Sufis – the mystic Persian and Muslim poets in Spain.  And the magnum opus of this tradition – at least in terms of popular culture – was The Arabian Nights.   RG 153