Okay so, /t/, I was being a useless NEET today and watching End of Eva and I suddenly realised that a lot of Eva and YN imagery matches up. And lo, a theory was born.
Madotsuki is Asuka. Or rather, an AU Asuka. She's an Ex-Eva pilot, prematurely retired after her mindrape at the hand of an Angel. Remember Asuka's mindrape? Disjointed images, words and, oh -- doors. Lots of doors. And what is Mado's Nexus full of?
Mado had a better grip on herself than Asuka, and therefore was better able to deal with the effects of the mindrape. Perhaps she went through a self-hypnosis.. thing, and suppressed the memories, so they only cropped up when she sleeps.
Everything in YN is a fucked up version of an actual memory, twisted by Angel mindrape. In an attempt to stabilize her mind, Mado subconsciously creates the 24 effects and deludes herself into believing that collecting all of them will 'fix' her.
But of course, it doesn't. Driven close to the edge from the trauma of her Angel-raped memories, Mado takes the only way out.
Going down.
Your thoughts, /t/?