Step 1: Identifying the Central Metaphorical Conceit:
In John Donne's metaphysical poem, the movement of the sun across the sky is used as an extended metaphor (conceit) for the development of romantic love. Within this framework, the “shadows” represent the emotional discrepancies, illusions, and pretenses that accompany a relationship at different stages.
Step 2: Distinguishing Between the Two Types of Shadows:
• Morning Shadows (Before Noon): Represent the early, immature stages of a relationship. These are the defensive disguises, secrets, and natural misunderstandings that lovers carry as they gradually work to understand one another.
• Afternoon Shadows (Post-Noon): Symbolize the onset of deceit, emotional decline, and creeping doubts. While morning shadows are cast in front of the lovers (visible and working toward resolution), afternoon shadows are cast behind them, representing hidden dishonesty and the slow decay of love.
Step 3: Formulating the Concise Academic Answer:
In John Donne's poem, the metaphor of the “shadow” represents the illusions, pretenses, and doubts that threaten romantic love. While morning shadows represent the initial secrets and misunderstandings of early love, afternoon shadows symbolize the deceit, blindness, and gradual emotional decay that occur when transparency and constancy fail.