Mending Wall
Robert Frost’s Mending Wall is a good example of a poem that can be interpreted with sociological approach. Although the poem does not describe the society or at least some group or community directly, a vivid and clearly defined portrait of one man – who obviously represents this society or its majority – is there for the reader. Frost uses simple and understandable language to describe this person, and to characterize him from the speaker’s innovative point of view. So, the person described in the poem symbolizes the society of that time, which is old-fashioned, primitive, and values conventional truths without even realizing the necessity to follow these truths, beliefs, and principles. 
The author addresses the society through this poem. It is obvious that he viewed things differently from how the society of that time did. He attempts to make them hear him and accept his principles, which is rather a common practice of American writers and poets. The neighbor in the poem symbolizes this mundane, boring, ‘black and white’ society, while the speaker is Frost himself. The wall symbolizes the society’s desire to stick to their principles, and the collision of beliefs is the main theme of the poem. 
Frost attempts to demonstrate the society’s attachment to principles, which it might not even understand. Anticipating that others would eventually treat you badly, they behave unjustifiably vigilant. Frost compares the man to an “old-stone savage,” by which he demonstrates that society’s values and beliefs are very primitive and old. Most importantly, this society refuses to listen to arguments against these principles, even though the arguments are valid. Frost put it as “he will not go behind his father’s saying,” portraying the tradition of passing the ‘conventional truths’ from generation to generation. 
There is also a symbol of freedom in the poem. The society, portrayed as the stubborn neighbor, refuses to live in a free environment, where people trust each other, and ‘love’ each other (meaning love to other people). Also, these people refuse to let the others in their lives, which also points to fear and distrust. Frost, on the other hand, appeals to a newer stage of relationship; the open, trustful, bright, and probably even loving stage, where people trust each other easily and let others in their lives. He seeks openness from others, while they all are closed.  He seeks understanding, but all he gets in return is the stubborn people who are spiritually blind and morally deprived. 
The wall symbolizes the huge fence between the two understanding of he world, - authors’ understanding and society’s understanding. By this poem, the poet attempted to appeal society of that time to analyze the values and principles that they blindly followed. He also appealed the audience to reply on their inner being, their soul and intuition. Frost wants them to forget the old rules and look at the world from a different perspective, the perspective of trust and harmony.