What does the tribes burning of the island symbolize In loft?

In William Golding's "Lord of the Flies," the tribes burning of the island symbolizes the complete descent into savagery and the loss of civilization among the boys. The fire represents both destruction and a perverse form of unity as it highlights their abandonment of societal norms and moral constraints. This act of burning signifies the triumph of primal instincts over reason, ultimately leading to chaos and the obliteration of the innocence they once had.