I'm not sure... how to describe it. *stares down at his glass* Invaded? Oh, yea. We're all alone in our heads. Having someone else in there? S'like an invasion. It didn't hurt, not like... getting punched or cut or something... *just goes silent, remembering too much*

It hurt because he was grieving. Such grief, Bones... like... I've never felt such pain. This guilt, this grief... Spock, as emotionless as he wants to be, feels deeper then we do. He watched his whole planet die... and this Spock? He believes its all his fault. That six billion lives were destroyed... all his fault.