The document discusses the key topics and objectives of understanding intercultural communication. It aims to define different types of communication including verbal and non-verbal communication. It also aims to explain why language is an abstract system, define paralanguage, discuss how language reflects a person's identity and culture, and explain the importance of language to human society. Finally, it aims to outline the four main areas of studying language: grammar, phonology, semantics, and pragmatics and show how language and culture are interconnected.