‘There are three kinds of listening. First, we listen to the words. Second, we listen to the meaning. Third, we listen to the truth. As we listen to these words about controlling the mind, we must grasp the truth, and forget the words and their meaning. By turning our attention within, we can then rediscover our own nature. For we all possess this perfectly still nature. But it is obstructed by ignorance and delusions that rise and fall without cease. Thus, students should concentrate on turning their hearing within. And they should keep listening until the realize that the Buddha, all beings, and the mind are not three different things.’ (Commentary on the Diamond Sutra)