Living things... Well, bacteria, Fungi, Animalia if you want me to continue or go into deeper detail I will :)
Answer:
Okay i have read the whole play and i can help you out.
The dreams in the play symbolizes reality and how they were switched around with lovers who they didn't really love. I don't have the textual evidence but i know this because i had the same question.
Hope this helps:)
Explanation:
The answer is "A character".
