In the Far East, it is taken for granted that the training of a monk is physically rigorous and academically challenging.
The challenge of power is how to use it and not abuse it. When you abuse it, it reverses on you and it hurts you.
A person who has power doesn't seek to challenge others, their battles are within.
Once in while a teacher may make a recommendation, it is usually after going through the basic Socratic method of trying to get people to figure it out themselves. A good teacher challenges your mind, your intellect, and your spirit.
Begin with your daily life. Take your life as a challenge and try to bring yourself into harmony with each thing in your life.
Naturally, along the way, there are beings and forces that will challenge you. They want to try and get some of your power, take it away from you, all this nonsense, and of course, you just defeat them.
