
niva used to hold the anger and lust and rebellion that I didn't have/couldn't acknowledge in myself; we both came to understand why she was so scared (not angry); she learned how to tolerate it; I am learning how to be angry now, not be afraid of doing spontaneous things or having a sexual side.
Cedar's belief system didn't fit into anybody's reality until she [he?] integrated. We've become more whole with the integrations; it has not been a bad thing.
I used to have no feelings just like Aiden until Cedar integrated. but now I'm genuinely actually really happy!!!

I need Aiden and Sonja and Jane, and they need me. But one day that may no longer be the case and some of us will integrate. Or not. Who knows?! If somebody who holds a skill or capacity for a certain emotion or whatever integrates, those qualities will rub off on the rest of you.
ANP is 'apparently normal part' http://www.psychforums.com/dissociative-identity/topic122093.html. A way to classify certain types of alters as opposed to 'Emotional Parts'. There's a lot to read on the subject if you're interested…
Hope I answered your questions!