Oh, if someone could explain the ending that would be awesome too in regards to :
Who is destroying the ordeal ? Is it the no-god ( kelmomus ) or Akiol ( Kellhus ) and why is kellhus body still here as he was touched by chlorea that kelmomus had - therefore his body should be dust yet i had the picture that it was him coming to the ordeal at the end - it makes no sense to me.
Also, if he could control the chlorea in the skinspies hands with such mastery - how could he not controll Kelmomus...
A quick summary of the ending would be, in the order of your questions, as follows: the No-God is destroying the Ordeal, it's unclear whether we should think of the No-God as Kelmomas (there are reasons not to), Ajokli was exorcised by Kelmomas's presence since Kelmomas was always the No-God from the Outside perspective and so anathema to the Gods (they can't see the No-God, affect it, and even exist close to it; there are theories about the scope and nature of this effect). The picture of Kellhus descending to the Ordeal is a hologram similar to the image of Shauriatas in the Golden Room. This hologram was needed to give the No-God time to start operating at full or significant capacity.
Kellhus-Ajokli couldn't control Kelmomas because of the effect of the No-God outlined above. He
could control Chorae because the power of the Gods is not sorcery and as such is unaffected by Chorae.
In regards to the first half of your post, I feel others would explain it better than me. I'm a bit hazy on the details of TGO ending at the moment.