Knowing the difference between real life and what is in your imagination is necessary in society. We cannot keep track of both the real world and the world in our mind. When we get too deep into what is in our mind, we loose track of the reality that is agreed upon by the mass consciousness. The mass consciousness then agrees that the person living in their imagination is insane.
But how ‘sane’ is an average person who agrees with the reality of mass consciousness? We all make things up in our mind, based on what the past has taught us. We all read into situations and comments throughout the day. Often, our ‘take’ on a situation has absolutely no basis in reality. It is all in our mind.