Why did the liquor of Shangde in Yuan Dao take the names of Wen Dao, Dao Dao, Ming Dow and Hongdao? Does it mean anything?

knowing is knowing, not knowing is not knowing, and knowing is also. When things are unknown, you don't pretend to understand, and you can ask questions on your own initiative, which is the first realm of life;

what you get on paper is always shallow, so you should practice it if you realize it. After questioning, we should not just talk about it, but spare no effort to find the answer, in order to find the way and the second realm of life;

there is no way for mountains and rivers to return to doubt, and there is another village. After struggling to find a way, if you can be suddenly enlightened, it is for Ming Dow and the third realm of life;

sneak into the night with the wind and moisten things silently. After I have realized something, it is more precious to spread what I have learned to more people, which is the fourth highest realm.