Ok, some have already mentioned it, but Warrior of Wano seems like the most apt. Unlike the other two, it's not a broad concept like 'Science' or 'Liberation', but it goes hand in hand with Zoro's plotline over the course of the Wano, as we slowly discover his connections to the country. Knowing who Zoro is, and where he come from lines up with the concept that death completes a person, too. I'm not sure how Zoro's revival could reveal anything to us, but you know the saying, "your life flashes before you die." It might reveal some repressed memories of his childhood. Some things he's ashamed of, and was hinted at when Perona hit him with the negative hollow.