@Kyrisse By the way, Robert is not going to wake up from that so easily. Oh, and don't edit the shaking him part, because yeah.
Robert's suffering the backlash of his powers. One of it's weaknesses, and something that happens when he overuses his power.
Hm... I don't know if he took brain damage, probably not, but he's going to be unconscious for a while as his mind tries to recover. It'll be a couple hours at the very least. Maybe more. Possibly a day?
He basically overloaded his mind, so he's going to be out while his brain/mind tries to recover from the ordeal. When he wakes, he's going to be dealing with a massive headache and nausea, a bit like if he got a concussion I suppose. Actually, yeah, looking at the symptoms of a concussion, it's pretty much that.
He's going to be dealing with the side effects for at least a couple days.
He'll have issues with thinking clearly, concentration, learning/retaining new information. He'll have a massive headache and a great deal of nausea. He'll feel dizzy, and be sensitive to bright lights and sudden/loud sounds.
What other information would you need to know?
@DecemberGrayson will probably have some difficulties finding Robert, unless he managed to grasp a feel for Robert, be it aura, or the feeling of his mind, or what.
Robert's mind is very weak so any sort of presence or anything should be much weaker.
Also, I won't ask you to be careful with Robert's mind, but I do want to let you know it's very weak. It won't be destroyed if Grayson accidentally manages to pop up in Robert's mind or something. It's not exactly going to be pretty though. And it of course depends on how roughly things go.
Right now, I'd say Robert's mind is a bit like a wavering candle flame, rather than flames merrily crackling in a fireplace, or an inferno.
Since Robert's unconscious, there shouldn't be anything like strong emotions, unless there's something residual left from his nightmares and that mind-blast.
Ohh, that might be a way to find him. From the residual fear and confusion. Just look for one with a familiar taste, or smell, or... whatever it is Grayson might sense.
Ah right, and healing Robert's mind, will probably be difficult. Though not impossible I suppose. I don't think it'll work for the regular healer though. Not sure. Yeah, I think some of the damage can be healed, but not all, so healing can lessen the headache and the nausea and stuff, but not fully heal it.
As for astral creatures and empaths... hm... think both of them are too inexperienced to attempt something as risky as that. Grayson would probably have to channel energy or something from his astral form in order to heal Robert's mind. The way Robert's mind is though, would make that very, very dangerous. Grayson might not be able to stop the drain, after all, once it started. And Robert wouldn't be conscious to stop it, even if he knew how to.