 The overture begins conventionally enough in traditionally noble Lullian style but the technical complexity of the ensuing fugal movement must have disturbed conservative critics worried that Rameau's music would be overly "savant" (learned).Since the death of Louis XIV the allegorical prologue no longer had any social or political function.Instead, Pellegrin uses it to foreshadow the action of the main opera by showing Destiny ordering Diana and Cupid to unite their efforts to ensure a happy outcome for Hippolyte and Aricie's love.