My unscientific head-canon is that it's exactly the same thing that a person who usually struggles with their self-esteem experiences once it improves: suddenly

My unscientific head-canon is that it's exactly the same thing that a person who usually struggles with their self-esteem experiences once it improves: suddenly many things become easier and fate seems somewhat kinder. Not because there's some magic involved, but because your own behavior influences your outcomes in multitude of ways you don't think about or notice.