Final answer:
Roger's feelings are not directly described in 'Lord of the Flies', but his actions indicate a descent into savagery and a loss of morality.
Step-by-step explanation:
The student's question pertains to the character Roger's feelings when he heaves the rock on Piggy in the novel 'Lord of the Flies' by William Golding. The novel doesn't provide a direct insight into Roger's emotions at that precise moment, but his actions throughout the story suggest he has descended into savagery and lost his moral compass, feeling empowered by his ability to harm others without consequence. This is a pivotal moment in the novel where the themes of innocence lost and the inherent evil within humans are highlighted.