Final answer:
Winston's memory of his mother highlights the loss of human connection and the capacity for love, contrasting with the Party's oppressive rule.
Step-by-step explanation:
The memory of Winston's mother in the last chapter of 1984 represents a deep sense of loss and the human connection Winston once had, which is now suppressed by the oppressive regime of the Party. It reminds us of the humane capacity for love and sacrifice, which is starkly contrasted with the Party's doctrine of loyalty to Big Brother above all else. In his memory, Winston recognizes the purity and selflessness of his mother's love, elements that are absent in the society he lives in.