There are hearts with many different qualities, like water may contain different chemical substances: those who have suffered, those who have gone through the test of patience, those who have contemplated. These hearts all represent one or the other kind of the water that heals and so do the personalities. Persons who have had deep experiences of any kind-of suffering, of agony, of love, of hate, of solitude, of association, of success, of failure-all have a particular quality, a quality which has a particular use for others.