So I feel that this shows the reason why people understand the meaning or don't. It is all how their meaning affects the interpretation of what is being said. This also goes along with language. We, as human beings assign symbols, or language to communicate. Mead believed that symbolic naming is the basis for human society.
Human beings understand each other through the communication of symbols or in other words, language.
I feel that this can also be a cause of miscommunication. Mead also felt that this is where humans make assumptions about what has been said. Especially in the English language where so many word can have so many different meanings. So there can be many different meanings assigned to a symbol. Communication gives to us those elements of response which can be held in the mental field.