Why do we need to listen to ourselves?

These are the first time I've ever seen a person with a high school diploma, and the first time I've ever seen a person with a high school diploma, I've seen a person with a high school diploma, and I've seen a person with a high school diploma, and I've seen a person with a high school diploma.

To give a simple example, some of the square dance is playing the music of the Buddha, some people are listening to the same time the self-consciousness to follow the chanting, some people are listening to the rhythm as a gymnastics, some people are pedestrians passing by to hear, it is clear that the effect is different.