Imagery used to emphasize themes

Hello members of "The Literature Network",

I have been assigned to look at a specific aspect of Shakespeare’s Romeo and Juliet. In which I am to derive the way Shakespeare uses imagery to emphasize the themes of the play (good and bad to everything, and take/do everything in moderation).

After several hours of research, I was not able to find much. Although I believe Act 3, Scene 5 expresses some imagery in reference to the theme there is good and bad to everything:

JULIET
Wilt thou be gone? it is not yet near day:
It was the nightingale, and not the lark,
That pierced the fearful hollow of thine ear;
Nightly she sings on yon pomegranate-tree:
Believe me, love, it was the nightingale.


This expresses Juliet’s want for it to be night rather than day. Seeing as Romeo has to leave in the morning for Mantua and if he doesn’t – he will be killed. Shakespeare uses imagery to express a nightingale as the night and the lark as day.

Can anyone help with finding more examples?

Thanks in Advance