Then there is another thing to be understood: that is the softness and the loudness of the voice; that there are times when the voice is softer, and there are other times when the voice is louder. Naturally that shows the condition of the spirit at that particular time, because sometimes the spirit is tender, and with the tenderness of the spirit the voice becomes softened. Sometimes the spirit is harder, and with the hardness of the spirit the voice becomes hardened. In order to scold a person you do not need to put on a hard voice; the voice becomes hard naturally. In order to sympathize with a person, in order to express your gratitude, your love, your devotion, your affection to someone, you do not need to soften your voice; your voice is soft before you can feel it, before you can think about it. This shows that the voice is an expression of the spirit. If the spirit is soft, the voice is soft; if the spirit is hard, the voice is hard; if the spirit is powerful, then the voice has power; if the spirit has lost its vigor, then the voice loses its power.