Remind the reader of how you supported your thesis.
Thesis: The plight of Gregor Samsa and the inadequate reactions of his family members reflect man’s inability to reckon with everyday life in the face of unprecedented disaster.
Gregor Samsa's sudden and unexplained transformation reflects the senselessness of warfare, while his family’s unfeeling response represents the average person’s need to impose order upon an increasingly meaningless and fragmented reality.
Provide a broader connection at the end of your conclusion. Think about ways in which your argument could be expanded or related to a different setting.
In fact, Samsa’s tragic existence may explain our modern society as well. We live from moment to moment, engrossed in social media and ultimately artificial communication with our peers, while the specter of climate change looms on the horizon. Kafka provides a fitting metaphor: humanity trapped within an existence it does not fully understand and from which it cannot escape.