The book gives you the motivation to start what you have stopped fearing failures in achieving the goal. Hard work, Perseverance, Consistency, Determination is more important to achieve your goal. The author also speaks about Procrastination and overthinking and how to overcome negative thoughts. If u fail, try again and again. Focus is important for that we should have a plan.
Hard work + Smart Work = Success. Smart work alone may not give you success. So start taking action. Read the book to get motivated and put all your efforts and the right plan to achieve it.