And the fourth and most important, of course, was the delineation of a contemplative practice that not only had the possibility of a transformation of the human heart, but had 2,500 years of empirical evidence that such a transformation was a certainty.
第四个也是最重要的，当然， 是对冥想做法的描述， 冥想带来人类心灵的升华 不仅仅是一种可能， 已经有两千五百年的经验证据， 表明升华是注定的。