The document discusses different ways to refer to other parts of a text, including referring back to earlier parts, referring forward to later parts, and referring to visuals such as graphs or tables. It provides examples of language that can be used to refer to different parts of a text, such as "as mentioned above", "as indicated in the table below", and "please see the graph on page 10". The purpose is to demonstrate how to use cohesive devices to help the text flow smoothly and help the reader understand connections within the document.