Unfortunately, the narrator's neighbor does not see things this way; he prefers isolation and feels that fences are needed between people to live in harmony. Because of this he cannot open himself to the happiness of love and acceptance of diversity. He is anxious that the difference in the nature of each orchard will destroy one another and can not allow nature to topple this wall. .
The persona of this poem is nave, innocent in his manor, and eager to question. The character is intentionally portrayed as a childish figure. As you see in the line "Oh, just another kind of outdoor game- (21). His choice of words, game' brings a somewhat childish quality to the speaker. One of the more obvious examples of this is the line "Spring is the mischief in me, and I wonder if I could put a notion in his head: "Why do they make good neighbors?- (30) He questions the neighbor, and even supports his argument stating "Isn't where there are cows? But here there are no cows. Before I built a wall I'd ask to know what I was walling or walling out, and to whom I was like to give offence- (30-34). What the narrator does not realize is he is walling in himself. .
A very important and thought provoking line occurs in lines 31-35 in which the narrator asks what he is walling in or out who he is likely to give offence. In this statement the veiled hurt of the narrator is displayed. Although the speaker continues this game of mending the wall, he secretly hopes that his neighbor will tear down the barrier between them. He feels that he has been offended by the fact that his neighbor wants no interaction with him. In this way the barrier not only separates people in society because of their race or beliefs, but can also form a barrier in relationships with others and limit friendships and ultimately happiness. .
The real differences between the two people in the poem is that one moves in a world of freedom, lives every day of his life pursuing his imagination, while the other, unaware of the value of imagination must live his deliberated life without it.