In "Lord of the Flies", why does Piggy ask Sam to let him hold on to him?
Symbolically, this could be interpreted quite significantly. Piggy's ironic ability to "see" things the other boys cannot, like the breakdown of civilization on the island, slowly fades. We can trace this through his literal gradual loss of sight (his glasses break, then are stolen). At this point in the story, Piggy literally needs to be guided by another boy because he is completely blind without his glasses. Symbolically speaking, Piggy, once the voice of reason and rational thinking, has lost these abilities. Reason and logic have completely disappeared from the island at this point in the book.
After Simon's death, the group of boys is clearly divided. Ralph, Piggy, and Sam and Eric remain together while the rest of the boys stay with Jack. The following night, Jacks brings a group of boys to attack Ralph. Piggy is frightened because Jack is calling his name. A fight ensues, and Jack's group steals Piggy's glasses. In chapter 11, Ralph decides to go to castle rock to talk with Jack. Because Piggy doesn't have his glasses, he cannot see where he is going. He asks Sam if can lead him so that he will not fall.