I did play that a few times. You sure he mentioned dreams ? I'll take a look again at some point. But its still all very obscure at best.
Ferdows said in Book Three that machines are programming ultimate message and it will be send to Tower and Tower is final part of Engine and it will feeding and molding the dreams and changing the world...for better. It was all told in game. Play Engine Room part in Book Three!
But I don't want to get side tracked by one point.
Currently the unanswered question list is vast.