Jiu Jitsu at the end of the day, is the art of expressing yourself honestly. Everytime you put on a Gi, you can't lie.
If you think, you are late. If you are late, you use strength. If you use strength you get tired. And if you get tired, you die!
Jiu-jitsu is the gentle art. It's the art where a small man (or woman is going to prove to you, no matter how strong you are, no matter how mad you get, that you're going to have to accept defeat. Thats what Brazilian Jiu-jitsu is.
When you react, you don't give your mind the time to get filled with emotions. You are devoid of anger, fear, and frustration; you are simply moving.
Just as the child must trust his mother, the white belt must believe in the good will of his instructor. There will be a time for questioning, but for now he must focus and train.
It's not what you're going to take from martial arts, it's what you have to give to martial arts