Shakespeare's sonnet "To His Love" contains two of the most quoted lines in all of romantic love poetry.
Shall I compare thee to a summer's day?
Thou are more lovely and more temperate.
This poem exudes the love which Shakespeare feels for his beloved. While the poem begins with positive thought, it changes suddenly in the second stanza. While the sonnet seems to take a negative turn, speaking to the process of aging and death, it is meant to bring hope to his love by providing a promise that their love will never end.
The poem is meant to provide reassurance to the beloved by providing a promise that their love will outlast all- even life.It seems that nothing, not dimmed complexions or declined fairness, will stop the love between the two.
This poem simply speaks to the lengths which love can survive. Shakespeare is telling his beloved that there is nothing that can extinguish their love- a true statement to the admiration and passion he feels for her.