In the poem Let Me Not To The Marriage Of True Minds William Shakespeare portrays love in its most ideal form, while John Keats portrays love as eternal innocence and beauty. Shakespeare's poem praises the glories of lovers who have come to each other freely, and enter into a relationship based on trust and understanding. Keats poem on the other hand emphasizes love as pure and innocent. Even though these two poems portray love in different ways they both capture love as being beautiful and eternal.
In the first four lines Shakespeare reveals that love is constant and strong, and will not "alter when it alteration finds". The following lines Shakespeare states that true love will survive any crisis. In lines 7-8, Shakespeare claims that love's actual worth cannot be known; it will always remain a mystery. In lines 9-12, Shakespeare reaffirms the perfect nature of love that is unshakeable throughout time and remains so "ev'n to the edge of doom." In the final lines, Shakespeare declares that, if he is mistaken about the constant, unmovable nature of perfect love, then he must take back all his writings on love, he adds that, if he has in fact judged love inappropriately, no man has ever really loved, in the sense that he has portrayed. .
Keats introduces the theme of eternal innocence and the sufficiency of beauty with reference to the "unravished bride of quietness." Accepting her purity of not yet engaging in the sexual actions of marriage, and she will remain like so forever. The second and third stanzas restate the theme of eternal innocence and beauty. Keats writes of a young man sitting under a tree with the girl whom he loves. He is playing a pan flute to the girl expressing his passion for her through music. He will always play the flute and can never kiss the girl. Keats uses the following lines in this stanza: "She cannot fade, though thou hast not thy bliss, / For ever wilt thou love, and she be fair!" These lines simply mean that the boy doesn't have the bliss of the kiss; but the poet says not to worry because the young girl will always remain by his side, young and beautiful.