Othello- Metaphor

Othello, the Moor of Venice
William Shakespeare

When talking about murdering the beautiful Desdemona, Othello compares it to a few different things.  These comparisons shows how Othello still loves Desdemona, and recognizes her beauty and vitality.
"Put out the light, and then put out the light. If I quench thee, thou flaming minister, I can again thy former light restore...When I have plucked the rose, I cannot give it vital growth again.  It needs must wither. I'll smell it on the tree" (V.i.7-15)
Desdemona is compared to a light and a rose.  Both of these things are beautiful and enjoyable.  Othello says that a candle can be relight, but once he kills Desdemona, he cannot bring her back.  And once he plucks the rose, I cannot live anymore, it has no choice but to die.  The last sentence is Othello appreciating Desdemona's beauty and life while she maintains it- just like he would smell a rose before he plucks it and it dies.  Roses are sweet and light is warm, just like Desdemona.  These comparisons show that Othello might be slightly reluctant to murder her, or at least a little saddened by it.  He cries, but they are cruel tears.
Though he might regret it, and though he seems hesitant, Othello ends up killing Desdemona.  Just like the beautiful rose is plucked and the bright light is extinguished.