Components that communicate using dot syntax

Our script has variables for holding data, and our script has methods to allow tasks to be performed. I now want to introduce the concept of communicating with other GameObjects and the components they contain. Communication between one component's GameObject and another component's GameObject using dot syntax is a vital part of scripting. It's what makes interaction possible. We need to communicate with other components or GameObjects to be able to use the variables and methods in other components.