Betwixt mine eye and heart a league is took,
 And each doth good turns now unto the other,
 When that mine eye is famished for a look,
 Or heart in love with sighs himself doth smother;
 With my love's picture then my eye doth feast,
 And to the painted banquet bids my heart:
 Another time mine eye is my heart's guest,
 And in his thoughts of love doth share a part.
 So either by thy picture or my love,
 Thy self away, art present still with me,
 For thou not farther than my thoughts canst move,
 And I am still with them, and they with thee.
 Or if they sleep, thy picture in my sight
 Awakes my heart, to heart's and eye's delight.

William Shakespeare
Sonnet 47