Read the following lines from Chapter 30:
There is no peace in CyFi's his head. The Fry doesn't know how bad it is. The Fry doesn't know how the feelings crash over him like storm-driven waves pounding a failing seawall. The wall is going to collapse soon, and when it does, Cy will lose it.
The reader can conclude from the simile and metaphor above that CyFi—