It is confusing. I had to go back and read about it more in order to come to my conclusion. But I do believe it. I sometimes catch myself "yelling at me" internally, and if I think about it, can often tie that to an event in my childhood/adolescent years. It's the ones I can't tie to anything that I wonder about. I'm guessing they tie back to my memory fragments or maybe they have just been modified by life experiences.