The paper analyzes John Milton's sonnets VII and XIX to highlight the evolution of his poetic themes relating to time and blindness. Sonnet VII reflects a youthful concern with the passage of time and personal achievement, while Sonnet XIX expresses a deep struggle with his blindness and the feeling of inadequacy. The analysis showcases Milton's shift from optimism about youth and potential to a more somber perspective on disability and the search for purpose in serving God.