Intrapersonal Communication is defined as the communication process within an individual. The way that society communicates in our complex daily lives may only be understood after we are able to comprehend that communication utterly relies on our particular perceptions. We will now take the time to introduce how the Sapir-Whorf Hypothesis is related to language and thought in communication. We will also explain how it is possible for psychology to play such a major and essential part of intrapersonal communication.