'And blights with plagues the marriage-hearse
• 'Blights' 'plagues' - like an infection, curse, damning society
• Mariage-hearse (vehicle for transporting coffin) - sees marriage as a death sentence, no divorce.
• Oxymoron - positive image of eternal love paired with image of death & damnation. Nature, something prosperous, being destroyed by urbanisation
• Compound noun - binding together