The only way the sun seems to work against the boys is when its rays are MISused carelessly to make fire. Ralph uses Piggy's glasses to magnify the sun's rays on some dried twigs, making their first fire. It was intended to be a signal to passing ships in the hope of being rescued. Because the boys do not care for the fire properly, it gets out of control, burning a significant portion of the island. Jack also misuses fire when he tries to "smoke" Ralph out of hiding by igniting the jungle at the end of the novel.