In 1984 how do chapter 6,7 and 8 relate to each other thematically? And I’m spirit of doublethink, how are they also different and disconnected?

The setting is new mexico

Allusion and illusion. an allusion is an indirect reference, whereas an illusion is something that is unreal or incorrect. each of the nouns has a related verb form: allude “to refer indirectly to,” and illude (not a very common word), which may mean “to delude or deceive” or “to subject to an illusion.”