Mmmmm, indeed.
I think Mana overall is just a very closed off person, which isn't bad in its self. But I think its something that, for him at least, is something very harmfull.
He speaks about it as if it were a disease and says that it hinders him in his relationships with others which means its time he needs to do something about it before it gets out of hand. The one place think it's really becomming apparent is in his music.
Don't get me wrong though! I love his music and already have preordered the next album. But as a big fan I'm jst showing some concern.