Practice patience in such a way that you never give up the practice of helping others.
This is not easy.
You will be tired. You will hit a wall. You will be frustrated and drawn out. You will be skinned and quartered. You will give your eyes and ears, your blood and tears. You will give your heart.
And you will persist. Your practice will carry you forward free from harm. Such a practice is inconceivable.
And it is possible.