Look at a bed by the light in the gap, look at the center of the room by the light in your window, look at a room by the light in the yard, and shine all over the world. The same is true when a gentleman's wisdom is told. Or for a corner that is biased, or for you in a room, or for many people, or for continuous wood and drums, dreams and straw, the less bitter, the brighter, and the less bitter, the brighter.
"When the courtyard is exposed to the sun, you can see a place the size of a house. When the world is exposed to the sun, you can illuminate all corners in all directions." .
The more information you receive, the more comprehensive your understanding of things and the broader your horizons. In other words, it is: listen clearly, listen dark.