Complex sentence: The interplay of layers between the narrator's historical situation, the progress of Leverkühn's madness, and the medieval legends with which Leverkühn consciously connects himself makes for an overwhelmingly rich symbolic network, an ambiguous complexity that cannot be reduced to a single interpretation.
Split into simpler sentences: The interplay of layers between the narrator's historical situation, the progress of Leverkühn's madness, and the medieval legends with which Leverkühn consciously connects himself makes for an overwhelmingly rich symbolic network. The novel's great power lies in an ambiguous complexity that cannot be reduced to a single interpretation.