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You can only create medium with ruhk of fallen people and summon illah with it,which means even if they putted their own will inside of their ruhk,black ruhk still remains bonded to illah.
Ruhk simply needs a suprem master and right now we have solomon and illah.
Initially rukh belonged to Illah and carried his will. When Solomon dethroned him, it then carried Solomon's will. Al-thamen then found a way to dye rukh black but then it doesn't carry either Solomon or Illah's will. The only way for rukh to carry Illah's will again is if he regains his position. Rukh can probably only carry one persons will in general and that is the person that holds the position of 'god'. For Rukh to carry both wills is the same as there being two gods at a time which cannot or at least has not happened.
Last edited by Holt; May 24, 2015 at 04:13 PM.
Solomon might be god now but he is not stronger than illah.
And about that research,that is something really uncertain because there was multiple medium in alma torran.In order to create medium they need mess of people and lots of years so my guess they did a research to dry natural ruhk to black not person's imo.(but that leaves a question;why didn't they just do that research in new world ?)
As for the research, they really don't have the power or means to dye natural rukh black nor there's no reason for them to want to do so. That's something only a 'god' can do. They were using their power to try to restore Illah. If they had succeeded, then Illah would have been able to restore natural rukh to black. I don't think they really cared about the nature of rukh, just that they needed a lot of power that wasn't linked to Solomon's will so instead of trying to take on gods job themselves, they'd simply restore him and let him handle things.