Sonnet by Elizabeth Barrett Browning : Sonnet 43
Elizabeth Barrett Browning was a famous poet of Victorian age. 
She was born at Durham in 1806. Her maiden name was Elizabeth Barret 
but it was changed as Elizabeth Browning when she was married with 
Robert Browning (the great Victories poet).

In this poem, an illustration of passionate love to her husband has
 been brown very successfully. It is a nice Patrician sonnet has parts:

    An octave. (first eight lines that introduces the theme)
    A sestet . (last six lines that concludes the poem)

The rhyme theme of the poem is abba abba cd cd cd-

Symbol

The word  symbol derives from greek verb “symbollein” which means 
“to through together” and noun of the verb “symbolon”. 
A symbol is an object which is animate or unanimate . 
It represents that stands for something else. A symbol may be a figure of speech 
or a literal word that assumes an extra and special meaning.
It is basically an image which is used by virtue of recurrent uses.
It may be public or universal.