analogy is the word used to show similarity.
Answer:
“There is no longer anything I can fear. There is nothing the government has not done to me. There isn’t any pain I haven’t known.”
“They think because they have put my husband on an island that he will be forgotten. They are wrong. The harder they try to silence him, the louder I will become!”
“I’m not sorry. I will never be sorry. I would do everything I did again if I had to. Everything.”
He means that when he draws cartoons he is able to feel alive and above all of the hardships that have rushed into his life like a flood. This is comparable to a lifeboat because they keep people above water, preventing them from drowning, and although they aren’t entirely safe or luxurious they give their passengers hope for the future.