Read and analyze the following poem, sonnet 130 by William Shakespeare

My mistress' eyes are nothing like the sun;
Coral is far more red than her lips' red;
If snow be white, why then her breasts are dun;
If hairs be wires, black wires grow on her head.
I have seen roses damask'd, red and white,
But no such roses see I in her cheeks;
And in some perfumes is there more delight
Than in the breath that from my mistress reeks.
I love to hear her speak, yet well I know
That music hath a far more pleasing sound;
I grant I never saw a goddess go;
(continued)

Question

Read and analyze the following poem, sonnet 130 by William Shakespeare

My mistress' eyes are nothing like the sun;
Coral is far more red than her lips' red;
If snow be white, why then her breasts are dun;
If hairs be wires, black wires grow on her head.
I have seen roses damask'd, red and white,
But no such roses see I in her cheeks; 
And in some perfumes is there more delight
Than in the breath that from my mistress reeks.
I love to hear her speak, yet well I know
That music hath a far more pleasing sound;
I grant I never saw a goddess go;
(continued)

clamin · Answer

My mistress, when she walks, treads on the ground:
   And yet, by heaven, I think my love as rare
   As any she belied with false compare. 

How does the sonnet form emphasize the meaning of the poem? How does the final couplet differ from the rest,and reveal the main idea?