What theme is being developed by the use of imagery in Romeo's speech that begins "O, she doth teach the torches to burn bright! It seems she hangs..." From Act 1 Scene 5 lines 51-60.
The imagery in Romeo's speech speaks to the other-worldly, almost supernatural beauty he sees in Juliet, each line shows how infatuated he is and how his love is growing. The power of love is the theme that is being developed, and its power to control Romeo's every decision. Love is what matters for Romeo now, and nothing will stop his destiny.