Surely most games have a level, and the most important is how someone gets the key to level up to the next level. Of course this is very true as what you say, to reach the next level we need energy, we need strength, process, and consistent in facing the existing problems. And of course with Understanding, like what you have said, understanding, understanding and understanding. At least we need to learn how to defeat some powerful heroes in a game, and certainly not easy, this requires understanding, we need to learn and we have to find the weak point. Well how to get that understanding, of course by digging, searching and finding the right steps from some people who have successfully passed this level.