Chapter three discusses the distinction between 'scientistic' and 'dramatistic' approaches to language, highlighting how language serves either as a tool for definition or as symbolic action reflective of social processes. It introduces the concept of 'terministic screens,' which direct attention towards certain perspectives while obscuring others, demonstrating how different terminologies can shape our observations of reality. By illustrating this with examples from psychology and philosophy, the text emphasizes that our understanding of reality is largely constructed through our symbolic systems.