"I don't have the time to explain it fully to you now," Enola replied, gently. "It's private ... between Harry and I. He wouldn't be happy with me to go into too much detail about it without his consent ... even to you. Just know this, when I first came into Harry's life he was in so much pain, in every way that you can imagine ... and he was heading towards a complete mental breakdown ... and incurable insanity. His body was broken by the effects of Dark Magic, and his mind had spent months in wherever that dimension was that he met Dumbledore. Harry shouldn't have come back from there, Hermione. The mind isn't able to recover from the damage done by the journey, after so much time away.