“Your mind is like the water. If you get angry or upset simply sit and allow the mind to calm back down.”
“The mind is like water, when it is agitated it can not be seen clearly, but if you allow yourself to calm down, the answer is clear.” The idea comes from the martial arts, along with meditation, and it means having a stable, balanced mind that reacts to events only to the extent necessary, and then returns to the natural state.
Nothing more, nothing less.
Everything is possible when anyone finds inner peace.