what happens

You will be schizoid, in closer communion with your earlier selves than is considered usual. It will not make you less mature, but it will make you more compassionate toward your own teenage self, and everyone else’s too. You will practice forgiveness at an epic scale... [...]

You will be cured of any lingering adolescent ills, by the only person who can cure you, the one you’d have loved silently and passively when you were twenty, whom you’re somehow allowed to love now just as you would have wished to then. By some startling error in bookkeeping, you are permitted a do-over, one that erases (or at least detoxifies) the missed chances and regrets that we all carry over. [...]

Read: Thought Catalog.