Frozen is about anorexia.
Ok, ill explain. Anna or short for anorexia is Ana. Anna plays Ana, we ok so far? So, Elsa accidentally shot Ana in the head which was fighting anorexia of at a young age. She won. Growing up, she basically shut Ana out, too keep her safe or in another way, ‘to keep Ana away from Elsa’. When coranation day came, that was the day when Elsa felt secure about herself so she ‘opened the gates’. But she was scared because Ana was always trying to get her to play or trying to make her vulnerable. Elsa runs away because she’s scared but Ana just keeps on finding her. In the end, she goes back to Ana and stays with Ana, we all know what happens then….
I am sorry to ruin frozen for you but I just had to say it.