Answer:
The message behind the poem "Mending Wall" is that there is value in maintaining relationships, even if it means putting in effort to fix the issues that arise. The poet conveys this message through the lines of the poem by illustrating the process of mending the wall between his and his neighbor's property. He emphasizes the importance of maintaining relationships by noting that "something there is that doesn't love a wall" and that it takes two to make the wall whole again. The poet also uses the metaphor of the wall in order to convey the importance of mending relationships.
A real-life example to support this message is maintaining a close relationship with a family member or friend, even if there is tension or disagreement. It may take effort to repair the relationship, but it's worth the effort for the long-term benefit. For example, if two friends have a disagreement, it may take time to talk through their differences, but it's worth it to maintain the relationship.