As the clouds that are so light, <br />Beautiful, swift, and bright, <br />Cast shadows on field and park <br />Of the earth that is so dark, <br /> <br />And even so now, light one! <br />Beautiful, swift and bright one! <br />You let fall on a heart that was dark, <br />Unillumined, a deeper mark. <br /> <br />But clouds would have, without earth <br />To shadow, far less worth: <br />Away from your shadow on me <br />Your beauty less would be, <br /> <br />And if it still be treasured <br />An age hence, it shall be measured <br />By this small dark spot <br />Without which it were not.<br /><br />Edward Thomas<br /><br />http://www.poemhunter.com/poem/as-the-clouds-that-are-so-light/