But what if a person’s words are cruel and her actions too are unkind? Is she rotten through and through? Even a person like this may have a pure heart. Imagine you have been walking through a desert. You have no water with you, and there is no water anywhere around. You are hot and tired. With every step, you become thirstier and thirstier. You are desperate for water. Then you come across a cow’s footprint. There is water in the footprint, but not much because the footprint is not very deep. If you try to scoop up the water with your hand, it will become very muddy. You are so thirsty, you kneel down and bend over. Very slowly, you bring your mouth to the water and sip it, very carefully so as not to disturb the mud. Even though there is dirt all around, the little bit of water is still clear. You can quench your thirst.