In the beginning of this chapter, Piggy tries desperately to hold on to a sense of order that has crumbled around them:
"That's them," said Piggy. "They blinded me. See? That’s Jack Merridew. You call an assembly, Ralph, we got to decide what to do."
Even Ralph questions the need to call a formal assembly at this point. There is no one left to round up; everyone besides the two of them and the twins has shifted alliances to follow Jack's savage leadership. Yet Piggy still believes in the value of rules and order and thinks that structure can still save them.
As they prepare to retrieve Piggy's glasses, Ralph hands the conch to Piggy, who flushes with pride:
Piggy sought in his mind for words to convey his passionate willingness to carry the conch against all odds.
The conch symbolizes democratic order and a sense of civilization. The person who holds it is given authority and leadership. Though Piggy has tried to exert his leadership at various points in the novel, his voice has been largely extinguished and ridiculed. At this moment, he finally feels recognized and valued, trusted to carry their most precious symbol of order.
When they reach Jack's tribe, a sense of danger looms in the air. Piggy questions,
"Am I safe?" quavered Piggy. "I feel awful—"
Piggy isn't safe. His question represents a foreboding truth—anyone who opposes Jack isn't safe on an island under Jack's leadership. Although Piggy lacks his glasses, he is able to understand the truth in front of him. Entering Jack's territory is not a safe choice.
When Piggy is finally recognized and given the platform to speak to Jack's group, he poses a question that juxtaposes the two leaders on their island:
"Which is better—to be a pack of painted Indians like you are, or to be sensible like Ralph is?"
Savagery or sensibility? That is Piggy's question to the boys, and he undoubtedly believes that the group will see the folly in aligning with lawlessness through this contrast.
Shockingly, the boys celebrate their savagery by responding with shouts, growing increasingly more intense. Soon thereafter, Roger sends a huge rock crashing down on Piggy, extinguishing his voice permanently and symbolizing the end of the voice of intellect and rational thought.