"It comes to little more:.
There where it is we do not need the wall:.
He is all pine and I am apple orchard.
My apple trees will never get across.
And eat the cones under his pines".
He does not believe in walls for the sake of walls. The neighbor resorts to an old proverb: "Good fences make good neighbors." The speaker remains unconvinced and mischievously presses the neighbor to look beyond the old-fashioned folly of such reasoning. His neighbor will not be swayed. The speaker envisions his neighbor as a leftover from a justifiably old-fashioned era, a living example of a dark-age mentality. But the neighbor simply repeats the proverb.
The image at the heart of Mending Wall is interesting: two men meeting on terms of civility and neighborliness to build a barrier between them. They do so out of tradition, out of habit. Yet the very earth conspires against them and makes their task Sisyphean. Sisyphus is the figure in Greek mythology condemned continually to push a boulder up a hill, only to have the boulder roll down again. These men push boulders back on top of the wall; yet just as inevitably, whether at the hand of hunters or sprites, or the frost and work of nature's invisible hand, the boulders tumble down again. Still, the neighbors persist. The poem, thus, seems to meditate conventionally on three grand themes: barrier-building, the predestined nature of this activity, and our persistence in this activity regardless. .
The speaker may scorn his neighbor's obstinate wall-building, may observe the activity with humorous detachment, but he himself goes to the wall at all times of the year to mend the damage done by hunters; it is the speaker who contacts the neighbor at wall-mending time to set the annual appointment. The speaker says he sees no need for a wall here, but this may imply that there may be a need for a wall elsewhere, "where there are cows," for example. Yet the speaker must derive something, some use, some satisfaction, out of the exercise of wall-building, or why would he initiate it here? There is something in him that does love a wall, or at least the act of making a wall.