Complex sentence: The story begins with an allegorical dream, in which the narrator receives advice from the god of love on gaining his lady's favor, her love being symbolized by a rose, he is unable to get to the rose.
Split into simpler sentences: The story begins with an allegorical dream, in which the narrator receives advice from the god of love on gaining his lady's favor. Her love being symbolized by a rose, he is unable to get to the rose.