1. Marxism is a set of social, economic, and political ideas focused on class struggle and the oppression of the working classes by the bourgeoisie through the dominant ideology.
2. According to Marxist literary theory, a text reflects the author's ideology which is shaped by their social circumstances and class. The critic's task is to analyze how the text exposes class conflict and the destructive ideology that entraps the working classes.
3. This is done by examining aspects of the fictional world like characters, setting, and society to understand how they reflect the author's ideology and its interaction with the reader's personal ideology.