@ Octavian/Callan - Your notion that the gods are blind to the Cishaurim is fascinating! I had never thought about mark/no-mark as being relevant to what the gods can see, since I assumed that they could see non-sorcerers just fine, but maybe you are right and the Cish have figured out a trick like no other! The ability to use the psukhe on this interpretation would allow one to manipulate the world while letting the gods think that they were the ones in charge.

@ lockesnow - Love your bit about Moe using the psukhe to interrogate a mandati/talk to Seswatha! I bet there was a mandate hanging up just one room over from the skin spies!!! Far better way to get info than tedious skin spy neuropuncturing.
@ Octavian - I think that ultimately, Kellhus interpretation that he has seen more of the TTT than his dad is a mark of hubris. I'm betting Moe conditioned K's path to get K to that inference
@ Madness - Thank you for those Cinmoi quotes!!! Neat-O!!!
@ Triskele - Love your idea that the water is finite, so being the only Cishaurim makes you super awesome!
@ Wilshire - What you said about memory, it made me wonder if a nonman/quya's magic power rises exactly when they are experiencing whatever makes them remember. That is, if Cleric had to face hoards of sranc but was not able to use the experience to remember, they would have just run him over?
Before reading this thread, I had thought that there were 2 possibilities for Old Moe: 1) he was as Kellhus said or 2) he was extremely powerful and only cultivated the appearance of weakness to fool Kellhus. For #2, the Cish could have told Kellhus the truth if any had survived (maybe Meppa will reveal something like this, that Moe could move mountains). But now I'm wondering about #3, that Moe could be strong and was hiding his strength from all. He was playing a long con, pretending to be weak in the water to carve out a place 'behind the throne' and that he plays a solo game. He's the one Dunyain that won the lottery of finding the Psukhe first and now he pulls all the strings wherever.
Whatever the truth about Cishaurim is, I think the whole point of having markless sorcery in the story is to build up to a big reveal about someone manipulating events off stage. Every coincidence/dream/whatever that made Kellhus into the Warrior Prophet can be explained by Cishaurim and possibly more Dunyains.
TUC predicition:
http://cdn.memegenerator.net/instances/500x/48570409.jpgEDIT: It would be kind of neat if blinded Wutteat can see Cishaurim now.
EDIT2: It's weird that Xinemus can see the Cishaurim's seeing. Could it be that they are 'marked' but you have to be blind to see it? Would be nice to have Iyokus' perspective on this. Would be a good reason to keep a blind dude (with the gift?) of the few in the entourage.