The poem "Mending Wall" by Robert Frost begins with the statement that there is something that doesn't love a wall, and then continues by providing evidence. The first type of damage to the wall is caused by nature, as frost causes the ground to buckle, causing stones to fall down leaving gaps. The narrator next suggests that hunters rather than nature dismantle other parts of the wall.
The poem, in discussing the reason for the wall's existence, suggests that it is not natural. Not only are walls human constructions, but this particular wall has no real reason for existence, as it separates orchards rather than areas used for grazing animals. As the narrator muses on his relationship with his neighbor, both separated by the wall and drawn together in the process of maintaining it, he repeats the assertion that there is something which does not love a wall.