Text symbols acquire their values as a result of explicit assignment. To interactively assign text symbols, in the text editor choose IncludeSymbolsText. This method is available for all text symbols belonging to a text module as well as those of the associated form.
Values defined in this way are lost when the transaction is left. If you want to print the text module again, then you must enter the symbol values again. The purpose of the DEFINE command is to provide a means of making this value assignment a permanent part of the text, so that the values are available again when the text module is called again. This command can also be used to re-assign a new value to a text symbol half-way through the text.
Include 
Symbols 
. This method is available for all text symbols belonging to a text module as well as those of the associated form.