The beauty of vim is that the general paradigm is that you apply an action over a structured motion. For example, 'dib' will delete (d) the current inner block

The beauty of vim is that the general paradigm is that you apply an action over a structured motion. For example, 'dib' will delete (d) the current inner block (ib), and put it into the paste buffer -- wonderful for pulling a block out into a method. Reformatting a paragraph works similarly -- gqap (gq = reflow, ap = a paragraph). Vim's commands give you a language where you can refer directly to structured entities in your code, rather than being forced to speak in terms of numbers of lines, or cursor positions.