He's never experienced a pact before, so he doesn't know what to expect. As the light filters between them and the tether takes hold, binding him to the soul of the exorcist, at first it's frightening- like that oppressive light, the one that came hand in hand with that voice, and a wave of dread passes over him. His body dissolves into blue light and he's pulled - dragged, more like - into the human. The might of the Empyrean forces him into his new prison and slams shut the cage door, those words echoing, echoing endlessly. Obey. Obey. He feels like he's dying, and he lacks even the smallest ability to be upset about it. This is his fate. His new existence. It should be awful, yet he can't feel anything.

But... suddenly, as the ritual comes to a close, that presence fades away, and all that's left is the exorcist whose soul is now connected to his own. The oppressive sensation is gone, and instead he's left with an impression of... safe, warm, vibrant. An energetic thrum passes between the two of them, and while he doesn't return it - is incapable of doing so - he can acknowledge its existence. It's so different from where he'd been trapped before that he's startled. Something about it is almost familiar, though he doesn't know why it would feel that way, or what it might remind him of.

Confused, unsure, suddenly wishing someone would order him how to feel or think, he settles quietly in a corner of the exorcist's mind and waits.