Why the author has to put all the thoughts to help you attain your successes here?
Simply, the author has to write it down here, so that you can see it, over and over again.
Repetition is king!
If you keep it only in your mind, the chances are you forget it the very next day!
You must always write down the key things related to your goal.
Better yet, criticize it in all kinds of possible ways. Improve it in all the ways that you can think of.
Even if you think it is already the best you can do, it can still be better!
So put it down to paper!