YOM KIPPUR. The Day of Atonement. Should we fast? The question was hotly debated. To fast could mean a more certain, more rapid death. In this place, we were always fasting. It was Yom Kippur year-round. But there were those who said we should fast, precisely because it was dangerous to do so. We needed to show God that even here, locked in hell, we were capable of singing His praises.
Religion. Even when they are starving they're still considering fasting so that they can stay true to their religion. This is an example of rhetorical question because they are wondering if they should fast or not, but its not supposed to be answered. They are asking themselves if they should fast or not. They don't want to starve, but at the same time they want to stay true to their religion too.