Denying certain bad things ever happened- gives them a second-chance at a better first-time.
Denying certain good things to happen- for fear of bad repercussions- breeds more bad than any good.
Accepting mistakes as they are and aiming for better results is what improves odds of 'good' things to happen.
To be human is to grow and evolve both as a individual and as a species. Separate and whole at the same time- chaotic in symphony, but melody in rhyme separated by time.