One of the most common cultural symbols is language. For example, the letters of an alphabet symbolize the sounds of a specific spoken language. Symbolism leads to the “Layers of Meaning” concept. Culture is the meaning that is shared to provide guiding principles for individual meaning.
Symbols help people define and understand their culture because of the shared meanings of different symbols that are learned during the process of socialization, the process through which people learn the values, norms, beliefs, and expectations of their society.
As an Artist I think it depends on which piece of art it is and how you feel. Personally I like charcoal. On art medium they don't really talk about is oil paintings. They don't like teaching it because it a more complex medium.They mainly focus on acrylic paintings.