Symbolism means that something or something has symbolic meaning. Symbol, the means of expression of literary and artistic creation. It refers to expressing similar or similar concepts, thoughts or feelings through concrete and concrete images. Symbol, a Chinese word, is interpreted as expressing some abstract meanings with concrete things.

There is no necessary connection between the ontological meaning and symbolic meaning of a symbol, but through the artist's prominent description of the characteristics of the ontological things, the art appreciator can have such associations and understand the meaning that the artist wants to express.

In addition, according to traditional habits and certain social customs, choosing familiar symbols as ontology can also express a specific meaning.

Secondary reinforcement can be divided into the following categories:

Social reinforcement-expression and behavior of encouragement and praise.

Activity enhancer-interrupt learning, play children's favorite games, listen to music, etc.

Younger children prefer things like stickers and small red flowers, so children will be rewarded with a small red flower when they complete an instruction, and they will actively cooperate with the instruction next time. Small safflower is a typical secondary reinforcement.

Many parents don't know the classification of fortifiers, thinking that children who want snacks and pocket money are the correct use of fortifiers. Actually, it's all wet. The emergence of reinforcement must closely follow a certain behavior, and this behavior will have the effect of increasing the incidence. Snacks and pocket money used by parents are at best material rewards.