In order to help others, first we must make ourselves into a proper tool for serving others by improving our own qualities. If our mind is filled with negative emotions, whatever we do will be the expression of those emotions, and therefore, in whomever we reach we could cause ill effects. If we are equipped with loving-kindness, however, even our mere presence could bring authentic peace and joy to those around us. So we must improve our own mental state first, through meditation training.
The Healing Power of Loving Kindness