The occurrence of (1) characters is blocked by space and time in the process of expressing feelings between people. The space barrier is easy to understand. The so-called time barrier has two aspects, on the one hand, the personal gap between the past and the present, on the other hand, the social gap between generations.

(2) Culture is a social experience that depends on symbol system and personal memory. Everyone's "present" includes not only his personal "past" projection, but also the "past" projection of the whole nation.

(3) In rural society, when a person encounters a problem in life, he can certainly seek an effective solution from the older people, because everyone is in the same environment, walking the same road, and there is no time gap. All cultures can be passed on from parents to children without words. (4) Writing can only go to the countryside after the local grassroots in China society has changed.