Strange Power, I know not what thou art, <br />Murderer or mistress of my heart. <br />I know I'd rather meet the blow <br />Of my most unrelenting foe <br />Than live---as now I live---to be <br />Slain twenty times a day by thee. <br /> <br />Yet, when I would command thee hence, <br />Thou mockest at the vain pretence, <br />Murmuring in mine ear a song <br />Once loved, alas! forgotten long; <br />And on my brow I feel a kiss <br />That I would rather die than miss.<br /><br />Mary Elizabeth Coleridge<br /><br />http://www.poemhunter.com/poem/to-memory/