Quote Originally Posted by MrThinker View Post
I'm pretty sure that there is a scene in 4.1 where we discuss the Resonant with Alphinaud
That scene takes place in the Resonatorium immediately following the prison scene where Fordola activaes her Resonance and views the WoL's past. Alphinaud pieces together how the imbuement process works and reasons out that they gave Fordola Krile's aetheric pattern. Arenvald derives from this and his own experience that she is like the WoL and himself, and cannot control the visions. The frequency at which visions occur is unknown to him, but he surmises that she must be having them day and night every time the guard changes.

But it's speculation on his part. Everything we're shown with the Resonant implies that they fully control when their powers are active by lighting up their special eye(s). It could be that Fordola knew she could see who was guarding her in this way, and was perhaps testing the waters to see if she could make an escape attempt. Only, the visions started occurring, and all she got out of it was pain. She doesn't control when the visions happen, but if she turns on her powers she's liable to get one. This kind of explains why she couldn't have escaped, say at meal time, despite the Resistance not having any aetheric siphons and what not.