Lastly, what is meant by changing through the heart? Though a person’s faults can amount to thousands of different types, they all stem from thoughts of the mind. If my heart is still of thoughts, then actions will not arise, and faults can be avoided. If your heart is rooted in vices such as desire, fame, profits, or anger, you don’t have to find ways to get rid of each fault. All you need is a sincere, kind heart and the willingness to practice kind deeds with all of your mind. As long as your heart is virtuous and kind, then naturally your mind will not generate any improper thoughts. All mistakes stem from the heart, therefore, one should change from the heart. It is like getting rid of a poisonous tree. If you want to put an end to it, you must uproot it altogether so it cannot grow again. Why exert yourself to no avail by pulling out its leaves one by one and cutting it twig by twig?