You have probably written the text that will be the same in every copy of your merge document, so this step is where you can add the Address Block or Greeting Line fields. Or click Insert Merge Field to add any other information from your recipient list that you want.
There is also another command called Rules that you can use to insert special fields. A special field can be a response to a question, for example, or it can be conditional text. An example of conditional text might be inserting "she" versus "he" in a sentence.
You'll get to try this in the practice session in the next lesson.