I am trying to understand the tea example. When someone says "I am making tea", to me, they mean "I have a plan! The execution of that plan has begun. The goal

I am trying to understand the tea example. When someone says "I am making tea", to me, they mean "I have a plan! The execution of that plan has begun. The goal is to make tea." and in the context, because that's the answer to the question, they are also saying "The reason the stove is on is because I am executing that very plan." Is this just idiomatic English? If we went formal logic on every sentence it would be a verbose world. Maybe other languages are more explicit.