There are many things in the world that ordinary people cannot see, but some people can;
There are also many sounds in the world that ordinary people cannot hear, but some people can hear them;
There are still many things in the world that are difficult for ordinary people to do, but some people can do it;
There are many phenomena in the world that ordinary people cannot explain clearly, but some people can explain...
These things that ordinary people cannot see, hear, understand, and imitate are all called "visions";
Those who are different from ordinary people and can see all these strange things clearly and even explain them clearly are called "others".