I don't see it as a metaphor. Writing and thinking are different. They can affect each other. Writing doesn't usually (ever?) happen without thinking. Thinking

I don't see it as a metaphor. Writing and thinking are different. They can affect each other. Writing doesn't usually (ever?) happen without thinking. Thinking can happen without writing but, for me at least, the act of writing promotes a type of thinking that makes it easier to understand, analyze and develop my model of the world.