The Thinking Behind The Tweet
When we were young a lot of people started to say "No" to us. We were made to believe it was wrong to say and do certain things....many things. The rules of "No" versus "Yes" were inconsistent, depending on who was saying the rules and where all of us were [mental schema, states of mind, etc.] when the rules were being expressed.
Regardless, when we were instructed "No", we received the message we were doing something wrong...i.e., we were making a mistake. We heard "No" so many times when we were young much of our current thoughts involve our past mistakes, sometimes even the mistakes we made when we were very young.
We should learn to shake mistakes off.