Robert Frost employs different literary techniques to expose his point of view. In his poem "Mending Wall", he uses descriptive imagery as well as metaphors to illustrate his point.
To separate two things and prevent them from mixing together, a barrier must be used. The type of barrier that Frost describes in his poem separates two different people. A wall separates the two houses, separating the two neighbors. According to Frost: "He only says, "Good fences make good neighbors." Spring is the mischief in me, and I wonder if I can put a notion in his head: Why do they make good neighbors" (lines 27-30)? The barrier being set up creates separation between these two neighbors. The wall symbolizes the separation that one of the neighbors wants from the other. One of the neighbors states the importance of a barrier to "make good neighbors". The other one questions this statement. Frost portrays these two neighbors as opposite in their personality. He juxtaposes the personalities of each character by the differences in their opinion regarding the wall.
Likewise, frost incorporates descriptive imagery to describe the differences in both houses. One of the houses "is all pine and I am apple orchard. My apple trees will never get across and eat the cones under his pines, I tell him" (lines 24-26). Frost employs the descriptive imagery of the fruits in each house. Through this he wants to make the reader picture the image described in a more precise way. The fruits mirror the characters' personality. Since there are different fruits growing in each house, there are different ideals in each neighbor. One of the neighbors wants to draw a wall and separate their ideals by employing this barrier. Frost describes this neighbor as afraid that his neighbor's ideals will "get across and eat the cones under his pines". In other words, he does not want to be close to his neighbor because he is afraid that he will change his ideals.
Robert Frost juxtaposes these two neighbors through the use of metaphors and imagery. Through imagery he conveys the differences in their houses which also show the many differences in their ideals. With these detailed descriptions he desires to portray to the reader a better idea of these differences. The metaphorical meaning of the wall and the fruits adds to these differences displayed by the two characters. In addition they show how one neighbor wants to widen the separation between them while the other desires to narrow it.