How does Simon change during the novel, and how does this affect violence or civilization on the island?

Simon is depicted as the novel's symbolic Christ-figure and is the only boy on the island to truly understand the beast's actual identity. At the beginning of the novel, Simon is extremely timid and shy. He faints in front of the boys, doesn't speak much, and is viewed as an odd individual. As the novel progresses, hysteria regarding the beast begins to spread, and the boys rapidly descend into savagery.
As the boys gradually become more savage, Simon begins to spend more time in his secluded spot in the forest and becomes one of Ralph's main supporters. During assemblies, Simon becomes more outspoken but fails to express his knowledge regarding the beast. Jack also gains more prominence, and Ralph begins to contemplate quitting. Instead of complaining about the boys' primitive behavior and lack of civility, Simon encourages Ralph to remain positive and even volunteers to walk through the forest at night to visit Piggy and the littluns at the base camp.
When hysteria regarding the beast is at an all-time high, Simon has an enlightening conversation with the Lord of the Flies while he hallucinates, which confirms his belief that the beast is the boys' inherent wickedness. This information influences Simon to climb the mountain, where he discovers the dead paratrooper's corpse. Tragically, Simon is mistaken for the beast during a violent storm and is brutally murdered by the boys on the beach. Overall, Simon's knowledge of the beast cannot prevent the boys from embracing their violent, primitive nature as they develop into complete savages.