In "Mending Wall" by Robert Frost, what is the gap the speaker refers to?

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chsmith1957 eNotes educator| Certified Educator

In the real stone wall, these gaps may appear in the spring, after natural frost-heaves from the ground move the rocks around and off the ledges. Stones may also be laid aside when hunters seek to uncover the hiding places of rabbits and other animals. In the metaphoric wall – the invisible boundary or relationship between one person/ neighbor and the next – gaps may come from misunderstandings, neglect, or non-communication. Here, the narrator and his neighbor are mending the physical wall while they are catching up with one another after a certain time away. They are also simultaneously repairing the invisible wall, the property tie, and special bond that they share. The gaps may at first appear to be negative spaces, but they also represent the possibility for two people to work together to repair the rifts: to find connection, not confrontation.