Here's why:
* Nonmaterial culture refers to the intangible aspects of a culture, such as ideas, beliefs, values, and behaviors.
* Symbols are things that represent something else. They can be words, gestures, objects, or even colors.
For example, a wedding ring is a symbol of marriage, the American flag is a symbol of patriotism, and a peace sign is a symbol of peace.
Here are some other words that could be used to describe aspects of nonmaterial culture, but they are not as specific as "symbol":
* Idea
* Belief
* Value
* Norm
* Custom
* Tradition
Let me know if you have any other questions.