Treat your context as a quote, and use it to back up your interpretation about the author's point of view. It also helps if you link that to an actual quote.

E.g. Golding wants to show that civilisation is undermined by our psyches. Civilisation appears to offer hope at the beginning, when Ralph, representing the ego, and Piggy, representing the Superego, establish order and the hope of rescue through the conch and assemblies. But Golding shows how Jack, representing the Id, undermines and eventually destroys this. His exclamation, "bollocks to the rules" is carefully chosen to show both the Id's attraction to desire - here symbolised by "bollocks", a reference to both sexual desire, and the desire for male power - and a desire to attack the control of the Superego, the "rules" which suppress his desires.