Actually, I agree with Traitor here for the most part. I think Trude is going to require a different kind of control to stay on the beam, not dissimilar to the 'one with darkness' mindset Vader and Rei follow. I fully agree she doesn't have to be evil at all, but she may need to approach control from a slightly different direction.

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Thy life is a riddle, to bear rapture and sorrow
To listen, to suffer, to entrust unto tomorrow
In one fleeting moment, from the Land doth life flow
Yet in one fleeting moment, for anew it doth grow
In the same fleeting moment thou must live, die and know