A diary is a place where you can write your feelings down and whatnot. There is a world to explore and a place to write your thoughts down rather it is paper or on computer. A diary is not a diary if you do not use it. It is just a piece of paper or just a commuter. Why do have a diary? It is there when I need to write. Not everyday do I write now-a-days but I write when I can and do have the time and need.