Childhood Memories
Your childhood memories, whether positive or negative have a different sheen in your mind. They have an ambiguity your later ones do not, a hard to define dreaminess.
In this way your childhood memories are a personal mythos, stories you tell yourself that have been through so many iterations that they barely resemble the real life happenings, stories that haunt your person, whether or not you get the deeper meanings they bring - whether or not you even remember them.
The fact that your brain as a child was so plastic and so malleable means that your memories from those times have been integrated so deeply into what you are as a person that they have changed as you have, altered slowly to fit whatever story we tell ourselves, because tell stories we all do.
Much of life is telling ourselves these stories, then feeling things for them - happiness because our stories are going well, sadness if life manages to improvise its way into a story we did not want or expect.