This text analyzes the context in which text and discourse are perceived. It examines how we make sense of complex sentences which we read and hear, and how we, as writers and speakers, put together sentences in order to express certain concepts. It discusses the existence of "text worlds", mental constructs which we build up in the form of conceptual scenarios. These enable us to make sense of complex sentences which relate to the concepts contained within them. The use of numerous examples of text and discourse and the diversity of the areas discussed, should make this topic accessible to a wide audience.