Final answer:
The pilcrow in InDesign indicates the end of a paragraph and is a non-printing character used for text structuring purposes.
Step-by-step explanation:
The pilcrow, also known as the paragraph mark (\u00b6), is used in Adobe InDesign to indicate the end of a paragraph. It is a non-printing character used to show where a paragraph break has been inserted in the text. In InDesign, pilcrows are usually visible when you have the hidden characters displayed, which can be toggled on and off through the application's Type menu or with a keyboard shortcut (typically Ctrl or Cmd + 8). The purpose of displaying the pilcrow is to allow designers and editors to see the structure of the text more clearly, helping them organize text consistently and manage spacing.