You're tired, don't know where this extra energy comes from. You keep moving forward trying to finish what you started. Some call it a "second wind." When you wants something and you keep going. You have to have discipline. You have to have self discipline. Is it something that you're born with or is it something you learn and practice? Let’s say it is both. Let’s say in your pursuit of your dreams you have to have that determination to go on. To practice having discipline, try to take a small task like reading a couple more pages of a book you are reading to push yourself to read more. You're tired from doing a task, and you don't think you can go on. What are you doing? You're testing your limitations. The military challenges the soldier to do things that the body doesn't think it can do. You are training yourself with your mind to go beyond your limitations. You are learning to challenge yourself to do things that you didn't think you can. In your journeys you may need to test your self discipline to climb that wall. To get up after being denied or knocked down. Self discipline is not easy, but you have to have it to gain the success you sought. Do you have what it takes? To give you a chance, you have to learn how to be discipline, even in your everyday life.