Answer: Writing holds the power to immortalize a writer forever.
Step-by-step explanation:
Shakespeare starts this poem by addressing someone he deems "more lovely and more temperate” than summer. Summer is portrayed as "too short a date,” meaning its beauty is fading, while the beauty of whoever is being addressed “shall not fade.”
Shakespeare is revealed to be addressing the poem itself when he writes:
“When it eternal lines to time thou grow’st.” Furthermore, he highlights the power writing has to provide a cultural legacy when he claims “So long as men can breathe or eyes can see, / So long lives this, and this gives life to thee.”