You might need to add the content to the YAML of the note or put it after an inline field field:: content and then bring it in with Dataview. Those are the two ways I know DV can bring content from a note. For example, the following code (with the cssClasses YAML field) will produce cards displaying the title of the card, along with anything in the body of the note after the inline field definition:: from notes with a field type with a value "Cards" on their YAML.